Cinnamon Tart - cooking recipe

Ingredients

2 cups ground almonds
1 cup sugar
7 egg whites
1/2 cup butter
1/2 ounce cinnamon (must be Canel and not the more readily available Cassia)
1 pie shell

Preparation

Mix almonds and sugar; soften butter and work in well (like a pastry).
Add egg whites & mix well.
Add all but a scant tablespoon cinnamon and mix well.
Pour mixture into pie shell.
Mix a scant tablespoon sugar with reserved cinnamon and sprinkle over pie.
Bake at 350F for 1 hour.