Mazurka with Almonds

Description
In Romanian: Mazurca cu migdale

Ingredients

 * 14 oz/400 g butter,
 * 7 oz/200 g confectioner's sugar,
 * 6 eggs,
 * 1/2 cup ground almonds,
 * 7 oz/200 g flour,
 * 1 teaspoon vanilla,
 * butter to grease the pan

Directions

 * 1) Cream the butter with sugar and add the yolks one by one. Mix very well.
 * 2) To the resulting cream, add almonds and vanilla, mix well, then add flour and at the end the whipped egg whites.
 * 3) Bake in a greased and papered pan, at medium heat. When done, cut in the shapes desired.