Directions
1Beat the egg yolks with the sugar until foamy and gradually add the melted butter and lemon juice.
2Mix then add the flour, cornstarch and baking powder to the mixture while beating.
3When the mixture is smooth, add milk.
4Then, remove a quarter of the mixture, pour into a bowl and add the chocolate powder.
5Beat the egg whites until stiff and add to the basic mass.
6Grease a pan with some butter and pour half of the white matter in it.
7About this, pour the chocolate dough and cover with the remaining batter.
8Place in the oven, pre-heated to 180 ° C for 30 minutes.
9Finally, get out of the oven, cool slightly, out of the mold and serve sliced.