Patispanja
Instructions
Work together butter, eggs and sugar to obtain a frothy mixture.
Then add the lemon zest, baking powder and flour and incorporated it well to prevent the formation of lumps.
You have to get a semi-liquid.
Split it in half, incorporating the cocoa in either party.
Grease the mold and pour the mixture by alternating light and dark one to get two colors (black and white).
Bake in oven at 180 degrees for about 30 minutes.
When cooked cooled and cut into slices.