First of all, the control of the baking process
First of all, the most important thing is the control of the baking process, let's be clear: a baking time indicated for a cake in a recipe is most of the time very approximate. This baking time depends on your oven, the temperature of the oven, the oven itself, the temperature of the batter, the type of pan etc. etc. The only thing missing is the age of the captain...
So the only good way to check if a cake is cooked properly is to stick a knife in the middle, if it comes out dry, the cake is cooked, and if not (trace of raw dough) it needs more time.
Not enough cooked
Enough cooked
The unmoulding
Imagine that it is well cooked => you turn off the oven, put on the gloves and take the mould out of the oven to put it on a surface that does not fear heat.
And then you wait for it to cool down.
Well no, that would be a mistake, if you do that, the cake will cool in its tin, and badly or rather unevenly, the tin acting as a heat preserver. Worse, it will form on the edges of the mold some kind of steam bubbles that will deform your cake, which gives this kind of defect:
Note that the defect will be accentuated with metal or glass molds, which conduct heat better, and a little mitigated with those made of silicone or paper.
What to do?
It's quite simple, you have to unmould your hot cake, very hot even, and put it immediately on a grid.
The easiest way to do this is :
- Once the mold is removed from the oven, wait 1 or 2 minutes that the cake begins to cool and shrink a little, it facilitates the removal
- Keep the gloves on, tip the pan with one hand, put your other hand underneath and shake lightly until the cake falls into your hand
- Turn it over and put it on a rack to cool down in a quiet place
- Bonus: Put the pan to soak right away, to make cleaning easier, and leave the oven door off so that it cools down faster (and the internal fan stops)
It's all very simple, but this way your beautiful cake will cool down faster, and above all without warping.
In summary: You must remove a cake from the oven as soon as it is baked, otherwise it will warp.