To make it, you'll need:

3/4 cup butter, melted

1/2 cup white sugar

1/3 cup brown sugar

3/4 cup flour

1 cup almond powder or ground hazelnuts (I use half of each)

5 egg whites, not whipped

 

Grease a mold or molds. Whisk the butter and sugars until light and fluffy. Add the dry ingredients then the egg whites. Do not overmix.

Pour in your mold(s) and bake for 30 to 40 mn at 325°F, no more than 30 mn for muffin molds.

Cool on a wire rack.

This cake is very nice as it is but you can also serve it with custard cream. Use the whites for the cake and the yolks for the custard and nothing won't go to waste!