We separated the eggs. Beat the egg whites with a pinch of salt. Gradually add the sugar and mix well until the latter melts. Mix the flour with the baking powder and add it gradually, stirring with a spatula from the bottom up.
We stop 2 lg of dough that we mix with cocoa.
Wallpaper 2 cake trays with baking paper, put the yellow composition, lightly pour the cocoa.
We pass the grapes through the flour and put them on top.
Put the trays in the preheated oven. about 45 min.