Melt the butter and let it cool down a bit.
Mix the flour, the sugar, the ground almonds and a pinch
salt together in a bowl. Dig a "shaft" and add the egg whites, mix, then
add the melted butter. Mix vigorously.
Butter the baking tins, and evenly pour the pastry in
them, then spread with the sliced almonds.
Bake in preheated oven at 180°C for 25 minutes.
Let it cool for 3 minutes and take them out from tins.
Financier Cakes are ready.