Condensed milk cake.
I found this recipe HERE, it's easy and really quick, I've just added a step beating whites untill firm.
It's good for breakfast or tea time, you can try it with different kind of flours like chestnut flour or buckwheat to find new tastes and consistences.
1 can condensed and sweetened milk (400 gm)
1 cup Flour
1/2 Teaspoon Baking powder
1/2 cup melted Butter + some to grease the pan
Brush the cake pan with butter, mix all the ingredients in a bowl except egg whites: you have to whip them untill firm then mix them with the rest of the dough.
Pour in the cake pan then bake in preheated oven ( 175 F°) for about 30-40 minutes.
You can fill it with marmelade, jam or chocolate cream.