Before you start making the biscuit, it is important to take the eggs out of the fridge, as the ingredients must have a similar temperature when mixing. Do the same with the healthy Nutella, in case you keep it in the fridge.
Next step is the baking pan, which we have to prepare in such a way that the biscuit will not stick to it and make sure that it will be the same height from all sides. Therefore, coat the bottom of the baking pan with cocoa butter and lightly sprinkle it with flour. Finish the preparations by heating the oven to 150 degrees Celsius.
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First, prepare two bowls and 6 eggs, which are separated into egg whites and yolks. Use the egg whites to make hard snow and slowly add half the amount of coconut sugar. Add the other half of the coconut sugar to the yolks and get a yellow-white mixture by stirring. Stir until the mixture becomes fluffy, then you can add the healthy Nutella.
Sift the flour and mix it with the baking powder. In the bowl with the yolks, first add 1/3 of the snow, and then the mixture of baking powder and flour. Add the rest of the snow and use a whisk to mix everything lightly (so that the snow is not destroyed).
Now the biscuit is ready and can be poured into a baking pan and then placed in the oven. Bake the biscuit at 150 degrees Celsius for the first 30 minutes, then raise the temperature to 165 degrees Celsius and bake for another 30 minutes. To fully bake the biscuit, after one hour of baking, raise the temperature to 180 degrees Celsius. After an hour and a half of baking, check with a toothpick whether it is baked (if the dough sticks to the toothpick when you pull it out, it means that it is not baked yet). If the biscuit is not baked yet, leave it in the oven for a few more minutes. When baked, take the biscuit out and let it cool, then cut it horizontally into three layers.