Ingredients: 4 separated eggs, 1/2 cup of sugar, a half cup of ground almond, 4 tablespoons of unsweetened cocoa powder, a tablespoon of melted butter, a teaspoon of baking powder, 1/3 cup of chocolate chips

First, mix the softened butter with half of the prepared sugar in a bowl until it becomes white. Add an egg yolk at a time and mix well. Second, add ground almond, cocoa powder and baking soda in the bowl. Third, in another bowl whisk the eggs whites until it gets stiff. Gradually add the remaining sugar and whisk well. Fourth, gently add the egg whites into the prepared chocolate mixture. Next, put the chocolate chips in it and mix. After that, grease muffin tins with butter, and pour the mixture in the tins. Finally, put the tins in the oven, and bake at 350 degrees Celsius for about 35 minutes until it turns brown.