Then, from the total amount of biscuit dough, take 2-3 tbsp. spoons and add to the mixture of cocoa and milk. Stir the mixture well. In the future, it will be easy to mix the biscuit mass and the mass with cocoa. At this stage, turn on the oven at 170-180C. I want to draw your attention to the fact that everyone’s ovens are different, so everyone chooses the temperature regime and baking time of the biscuit on their own, focusing on the capabilities of their oven.