For the carrot-chocolate-nut muffins, first peel and finely slice the carrots. For the batter, beat the eggs and sugar in a bowl until foamy (at least 10 minutes).
Then sift flour and baking powder and fold into the mixture. Add remaining ingredients and gently fold in. If the mixture has become too firm, simply stir in some milk.
Spread the batter in the muffin tin and bake at 180°C for about 35 minutes. After baking, let cool and decorate the carrot-chocolate-nut muffins as desired.