For 12 muffins:
1 7oz Almond paste
1 cup sugar
2 sticks (1 cup) butter
2 cups flour
1 teaspoon baking powder
1/2 cup milk
Optional : 1+1/4 cup / 1+1/2 cup milk chocolate chips
Melt the butter, in the meantime, in a medim bowl, crumble as much as possible the almond paste (lumps will melt during cooking unless they are too big).
Preheat oven to 390°F.
In the bowl, add the milk, eggs (I beat the mix between each egg, as with an omelette, I think it gives a better texture), baking powder, suger, melted butter and then flour.
Optional : you can add the chocolate chips.
Spread in a muffin pan (or a cake or others), cook for 20 minutes.