Behind every great croissant cross-cut photo there is an author who spent blocks and blocks of butter trying to understand what he’s doing wrong and how to overcome the failures that seem to not make sense. Throughout my journey of baking a perfect croissant at home, I will cover all the tips and tricks I learned from the first gruesome fail to a croissant I’m pleasantly happy with. Of course, with a little help from my friends @CookieLabSplit.
Before we start let’s cover the basic ingredients and how to get the most out of each.
The butter:
When making croissants, the key everyone will tell you is to use best quality butter you can find. Blindly I listened, went out and purchased the best and most expensive slab of butter I could find in my local area. The result? My butter tourage broke into pieces during lamination causing a marbled texture of the dough which resulted in a completely uneven rise.
So, when making croissants, do not buy the best butter, but best butter for croissants. What that means is to find the butter that can withstand high dilatation without breaking.
The apparent signs to avoid are: a swirly shape throughout the interior of your butter slab resembling a tree ring. (as you can see in the photo above.) This is caused by the excess water remained inside the butter during shaping after the churning process. While this butter can be of unquestionable quality on it’s own, it will break apart during laminating between each joint. Check the firmness by squeezing it. Even cold in the fridge it should not be rock hard when squeezed. Too firm butters resist stretching even at higher temperatures.
The flour:
Now that we purchased our croissant worthy butter, we can head home as other ingredients are all basic ingredients we have sitting on the shelf. Or are they?
Making proper croissants was really understanding each ingredient separately for me. Once I figured out what was wrong with my butter I encountered a problem of low rise and little if any air pockets. The reason behind the poor rise was in the flour. Again, like previously it’s not just the quality of the flour, it’s the type. What worked for me may not work for you, besides, making perfect croissants in one try is a shot in the dark if I might say.
Look for flour rich in protein (around 13-15%). The higher the protein amount, the stronger the flour is, which is essential for leavaining the layers of fat. Most all-purpose flours range from 9.5-11% protein, which from my personal experience is insufficient for achieving the flaky and airy interior of the croissant.
Same case as before with the butter, you will have to find the flour, or the flour combination that suits you the most, what worked best for me was a combination of Manitoba and strong bread flour.
As for the other ingredients, before experimenting, please bear in mind that – for a croissant to be perfect, the dough itself has to be an ideal balance of all ingredients, so if a specified amount of an ingredient is listed, it’s there for a reason. For example, Sugar not only provides richness taste wise, but is more importantly food for the yeast, if we were to not add sugar or use too little, our croissants will not ferment properly and will lose color and texture. Also, sugar absorbs part of the moisture of the dough, so you have to adjust the hydration depending on the sugar content.
Water temperature plays a huge role as well as it controls the rate of the fermentation. The temperature varies greatly from the room temperature the dough is being made in. For cold winter days, use water 26-28*C and for hot summer days use cold water 10-12*C.
Also, some may suggest adding butter at the start of the kneading process, though butter may inhibit gluten formation “coating” the proteins that would form gluten. First you knead the dough to develop gluten, and then add the butter around the already formed gluten.
Proofing:
Besides the ingredients, the biggest place for errors lies in the proofing. Under proofed croissants will leak butter when baking, while as over proofed croissants will collapse before they even reach the oven. The atmosphere for the proofing should be humid and between 25-27*C in temperature (Any warmer than 28*C, and your butter will melt and leak out through the layers.). To achieve the humid environment your best shot is to place a pot of hot water under the tray. To achieve the closest to ideal temperature I like placing them in the turned off oven with the light switched on.
Egg wash:
Atypically to some, I prefer giving the croissants egg wash twice. Once before proofing and once before baking. The first layer of egg wash is applied before proofing to prevent the skin from drying out. You could cover the top of the tray with cling film but that just makes for caution of sticking to the croissants. The second egg wash is applied right before baking for extra shine and color of the baked croissant. But be careful as to not coat the layers, as the eggs would seal the layers preventing them from expanding correctly during baking.
Baking:
Every house oven behaves differently so every home baker has it’s own temperature setup for each recipe. However, following what most suits you keep in mind that greater temperature ensures a greater oven spring (rise during first minutes of baking.) but on the other hand, due to high sugar amounts in the dough, keeping them on high temperature for long would make them brown too quick. What works best for me is to bake them at 190*C for just two minutes, then lower the heat down to 160*C until fully baked.
The croissants are best enjoyed 30 minutes post baking!