Preheat the oven at 380 Fahrenheit.
Mix the butter, the eggs and the Sugar in a bowl.
Add the flour and the baking powder.
Add the cerealac and the milk.
Prepare the pans by putting butter and flour lightly. If you have a nonstick pan it is better, so you do not have to repeat the step each time you remove the cooked madeleines.
Fill each madeleine hole at 3/4.
Put it in the oven for 5 minutes.