I have to tell you in advance that this post is quite dry because it's all technical stuff.
Honestly, I am no expert on this. I have only started baking macarons in October this year. If you do a search on the Internet, you will find tons of information and recipes dated as early as 2008. So, whatever I know, I learnt it from those websites.
Now, even if you have the perfect recipe (like Pierre Hermé's), you might not be able to get the same taste and quality as what his shop is selling. Simply because there are just too many variables and factors to consider. Even the ambient temperature and humidity play important roles in making this finicky pastry.
There are only 3 ingredients needed to make a macaron shell. Ground almonds, sugar, egg white. Powdered sugar and granulated sugar are used in most recipes.
Some other ingredients are used to stabilise the meringue such as cream of tartar/pinch of salt/lemon juice and to colour the shells using gel/powdered food colourings. They are not absolutely necessary. The braver bakers would try to flavour the shells with cocoa, dried fruit powders etc. The reason why I say they are brave is because there is always a risk that the macarons can come out as a failure when things are added causing the fine-balance to be toppled. So, if it is your first try, do not add anything extra to the shells, not even colourings.
That's it. Sounds easy peasy. End of story...
Ya, right!
Lets proceed to the more technical/demanding/boring part.
The ground almonds and powdered sugar form what is called the tant pour tant. They are in equal amounts by weight. Please don't use cup measurements. Some recipes do not have equal weight of ground almonds and powdered sugar and they still worked. The almonds must be grounded fine enough, and must not be too wet because moisture creates havoc in the shells. Some recipes insist on pure icing sugar, like I mentioned in the previous post, I don't think that is necessary, in fact, I find the cornstarch useful in a humid country like mine.
Regarding the egg white, some recipes suggest to "age" it first before using. The range can be from one to two days up to one week of aging! Some say leave it outside the fridge and just cover the bowl with paper towel to let evaporation take place. Some say to put the egg white in the fridge for a few days. Pierre Hermé suggested in his book to leave the egg white in the fridge for 5 days and cover the bowl with cling film, but cut a slit on the film with a knife to allow evaporation. I tried aging the egg white occasionally for 1 to 2 days, but I do not see any difference in the result. Maybe because I am using an italian meringue and fresh egg white does not cause any problems. If you are using the french meringue method, try aging your egg white. The main thing is, before using the egg white, bring it to room temperature before whisking.
The egg white and the granulated sugar are used to make a meringue which is later mixed with the dry ingredients. The meringue can be made using the french method or the italian method. French meringue is easier to make but less stable, italian meringue is more troublesome to make, but more stable. Less stable means that you can over-mixed the batter easily when you mix in the dry ingredients resulting in a very fluid batter that you cannot even pipe.
A lot of variations can happen even for the french meringue, some recipes state to whisk the egg white to stiff peaks, some say to medium stiff peaks. Some say to add in sugar the moment you start whisking, some say to add in the sugar slowly after the egg white has turned frothy, some say you dump the whole load of sugar in at one go. Some include the usage of cream of tartar/pinch of salt/lemon juice at the frothy stage to stabilise the meringue.
For the italian meringue, it is even more complicated. Possible variations I have seen include the stage of the egg white (soft peak, firm peak, stiff peak) before adding the boiling sugar, the temperature of the boiling sugar before it is added into the egg white, to what stage is the meringue whisked until (firm peak, medium stiff peak, stiff peak) and what temperature the meringue is (until cooled, body temperature, 40C to 50C) before adding to the dry ingredients. For italian meringue, it is advisable that you use a candy thermometer to measure the temperature of the boiling sugar.
As for mixing the meringue with the dry ingredients, there are also many methods. Dump all the dry ingredients in at one go, add them in 3 separate portions, add the meringue to the dry ingredients all at once or add a portion of meringue to the dry ingredients and mix, then add the balance in.
When you are mixing the meringue and the dry ingredients, remember not to over-mix. It is always better to slightly under-mix than to over-mix the batter. Macaronage is the term used for the mixing. You don't have to be extra gentle when mixing because you are not making an angel food cake. In fact, you need to deflate the batter so that there is not too much air within the shells which might cause a volcanic eruption when they are baked. I am not joking here, the shells can split open and spew out their contents. When you see that happening, it means your hard work has gone down the drain.
At what stage should you stop mixing and get ready to pipe the shells? Some say macaronage should be done until the batter "flows like lava"... What is "flows like lava"?... I have never seen lava flowing in my life. In fact, I have not seen real-life lava before! So I went to Google for help and these are the pictures of flowing lava. Really! I don't think it helps at all.
Some bakers offer better guides. They suggest lifting some of the batter up with the spatula and watch how the batter drops back into the mixing bowl. If it drops down like a thick ribbon, it is most likely to be ready. The batter will also become smooth and shiny. Another confirmation is when the batter drops back into the bowl, look for an area where the "ribbon" has fallen, start counting to 30 seconds. If the "ribbon" fuses back with the main batter, the batter is ready. If the batter flows like water or fuses with the main body within seconds, you have most likely over-mixed. If the batter flows down in clumps and retains its shape after dropping into the bowl, you can continue to mix more.
You can pipe the shells on silicone baking sheets (silpats) or parchment paper. The feet that develop using silpats and parchment paper look different. After piping the shells, you have to rest the shells so that the exterior of the shells form a skin which is no longer sticky when you touch it. This will prevent the shells from bursting when they are in the oven and also helps lift up the shells during baking to form the "feet". (Imagine a hot-air balloon.) Some bakers claimed that there is no need to rest the shells, I believe that is because they are in a very dry environment and the skins form pretty fast while they are piping.
Because of all these variations and permutations, even if you follow one recipe every time, the batch that comes out of the oven might be different from the previous batches or the next batch. So, the best advice I can offer you is to measure your ingredients precisely, grind your almonds as finely as you can possibly do, follow the steps accurately, watch your meringue closely as you whisk it, don't rush through the steps just so that you can throw the piped batter into the oven. The macarons will show you who is boss!
Honestly, I am no expert on this. I have only started baking macarons in October this year. If you do a search on the Internet, you will find tons of information and recipes dated as early as 2008. So, whatever I know, I learnt it from those websites.
Now, even if you have the perfect recipe (like Pierre Hermé's), you might not be able to get the same taste and quality as what his shop is selling. Simply because there are just too many variables and factors to consider. Even the ambient temperature and humidity play important roles in making this finicky pastry.
There are only 3 ingredients needed to make a macaron shell. Ground almonds, sugar, egg white. Powdered sugar and granulated sugar are used in most recipes.
Some other ingredients are used to stabilise the meringue such as cream of tartar/pinch of salt/lemon juice and to colour the shells using gel/powdered food colourings. They are not absolutely necessary. The braver bakers would try to flavour the shells with cocoa, dried fruit powders etc. The reason why I say they are brave is because there is always a risk that the macarons can come out as a failure when things are added causing the fine-balance to be toppled. So, if it is your first try, do not add anything extra to the shells, not even colourings.
That's it. Sounds easy peasy. End of story...
Ya, right!
Lets proceed to the more technical/demanding/boring part.
The ground almonds and powdered sugar form what is called the tant pour tant. They are in equal amounts by weight. Please don't use cup measurements. Some recipes do not have equal weight of ground almonds and powdered sugar and they still worked. The almonds must be grounded fine enough, and must not be too wet because moisture creates havoc in the shells. Some recipes insist on pure icing sugar, like I mentioned in the previous post, I don't think that is necessary, in fact, I find the cornstarch useful in a humid country like mine.
Regarding the egg white, some recipes suggest to "age" it first before using. The range can be from one to two days up to one week of aging! Some say leave it outside the fridge and just cover the bowl with paper towel to let evaporation take place. Some say to put the egg white in the fridge for a few days. Pierre Hermé suggested in his book to leave the egg white in the fridge for 5 days and cover the bowl with cling film, but cut a slit on the film with a knife to allow evaporation. I tried aging the egg white occasionally for 1 to 2 days, but I do not see any difference in the result. Maybe because I am using an italian meringue and fresh egg white does not cause any problems. If you are using the french meringue method, try aging your egg white. The main thing is, before using the egg white, bring it to room temperature before whisking.
The egg white and the granulated sugar are used to make a meringue which is later mixed with the dry ingredients. The meringue can be made using the french method or the italian method. French meringue is easier to make but less stable, italian meringue is more troublesome to make, but more stable. Less stable means that you can over-mixed the batter easily when you mix in the dry ingredients resulting in a very fluid batter that you cannot even pipe.
A lot of variations can happen even for the french meringue, some recipes state to whisk the egg white to stiff peaks, some say to medium stiff peaks. Some say to add in sugar the moment you start whisking, some say to add in the sugar slowly after the egg white has turned frothy, some say you dump the whole load of sugar in at one go. Some include the usage of cream of tartar/pinch of salt/lemon juice at the frothy stage to stabilise the meringue.
For the italian meringue, it is even more complicated. Possible variations I have seen include the stage of the egg white (soft peak, firm peak, stiff peak) before adding the boiling sugar, the temperature of the boiling sugar before it is added into the egg white, to what stage is the meringue whisked until (firm peak, medium stiff peak, stiff peak) and what temperature the meringue is (until cooled, body temperature, 40C to 50C) before adding to the dry ingredients. For italian meringue, it is advisable that you use a candy thermometer to measure the temperature of the boiling sugar.
As for mixing the meringue with the dry ingredients, there are also many methods. Dump all the dry ingredients in at one go, add them in 3 separate portions, add the meringue to the dry ingredients all at once or add a portion of meringue to the dry ingredients and mix, then add the balance in.
When you are mixing the meringue and the dry ingredients, remember not to over-mix. It is always better to slightly under-mix than to over-mix the batter. Macaronage is the term used for the mixing. You don't have to be extra gentle when mixing because you are not making an angel food cake. In fact, you need to deflate the batter so that there is not too much air within the shells which might cause a volcanic eruption when they are baked. I am not joking here, the shells can split open and spew out their contents. When you see that happening, it means your hard work has gone down the drain.
At what stage should you stop mixing and get ready to pipe the shells? Some say macaronage should be done until the batter "flows like lava"... What is "flows like lava"?... I have never seen lava flowing in my life. In fact, I have not seen real-life lava before! So I went to Google for help and these are the pictures of flowing lava. Really! I don't think it helps at all.
Some bakers offer better guides. They suggest lifting some of the batter up with the spatula and watch how the batter drops back into the mixing bowl. If it drops down like a thick ribbon, it is most likely to be ready. The batter will also become smooth and shiny. Another confirmation is when the batter drops back into the bowl, look for an area where the "ribbon" has fallen, start counting to 30 seconds. If the "ribbon" fuses back with the main batter, the batter is ready. If the batter flows like water or fuses with the main body within seconds, you have most likely over-mixed. If the batter flows down in clumps and retains its shape after dropping into the bowl, you can continue to mix more.
Batter is too stiff, shells still retaining the peaks. Compare with the batch below. |
You can pipe the shells on silicone baking sheets (silpats) or parchment paper. The feet that develop using silpats and parchment paper look different. After piping the shells, you have to rest the shells so that the exterior of the shells form a skin which is no longer sticky when you touch it. This will prevent the shells from bursting when they are in the oven and also helps lift up the shells during baking to form the "feet". (Imagine a hot-air balloon.) Some bakers claimed that there is no need to rest the shells, I believe that is because they are in a very dry environment and the skins form pretty fast while they are piping.
Shells waiting to dry. They will lose the shiny surface once they are dried. |
Because of all these variations and permutations, even if you follow one recipe every time, the batch that comes out of the oven might be different from the previous batches or the next batch. So, the best advice I can offer you is to measure your ingredients precisely, grind your almonds as finely as you can possibly do, follow the steps accurately, watch your meringue closely as you whisk it, don't rush through the steps just so that you can throw the piped batter into the oven. The macarons will show you who is boss!
Talking about ovens, the baking temperature suggested in different recipes differs too. The range can be from 125C to 180C. Different ovens perform differently. Some say to use convection ovens to distribute the heat evenly, some say to turn off the fan. The baking temperature is based on your own oven and you may need to do many test batches to see what is the optimal temperature for your oven.
When I first started, I piped a few shells and tested one temperature, then another batch of shells on a different temperature just to find the right temperature for my oven. If the shells turn brown before they are ready, turn down the heat. If the shells do not form the "feet", it might be because the temperature is too low. If the shells split open on the top, it might be because the temperature is too high or you did not wait for the skins to form.
Also, most ovens allow you to choose which level you want to bake, you have to try and see whether the lower third, the middle or the highest rack is most suitable. Some ovens allow you to bake two trays at the same time. It also depends on whether your oven has top heat, bottom heat or back heat. For those with only top heat, you might need a baking stone at the bottom. If your macarons brown too fast, put the tray in the lower rack. If the shells burst, put it in higher rack if there is strong bottom heat from your oven. You might even have to shield your macarons with foil to prevent them from browning because macarons should not turn brown after baking.
As you can see, it is not that simple.
In summary, the followings are areas that might cause you to have a failed batch of macarons.
So, watch out for the above and your macarons should be fine. *fingers crossed*
My next post on macarons will be about how I do mine and what recipe I use.
As you can see, it is not that simple.
In summary, the followings are areas that might cause you to have a failed batch of macarons.
- Almond - not finely grounded, too wet
- Meringue - not whisked enough or over whisked
- Batter - over-mixed or under-mixed
- Shells - not rested enough to form a skin over the exterior
- Oven temperature - too high or too low
So, watch out for the above and your macarons should be fine. *fingers crossed*
My next post on macarons will be about how I do mine and what recipe I use.