Marble cake by Manu

Ingredients

-300g  flour
-300g butter
-300g sugar
-1 tablespoon of baking powder
-4 eggs
-150g chocolate powder

1- First, mix the sugar and the eggs in a big bowl. Add the softened butter and mix well.

2-Then add the flour and baking powder,  and mix well. Divide the mixture in two. Mix the chocolate powder with half the mixture.

3- After that pour the chocolate mixture into a greased cake tin. Then add the rest of the mixture.

4-Finally, cook for 40 minutes at 180ºC.