Chocolate Thins

Directions

1. 1
   Preheat the oven to 400F.
2. 2
   Butter a 14x18-inch baking sheet with 1 tablespoon of the butter.
3. 3
   Cream the remaining butter with 1/2 cup of the sugar until light and fluffy.
4. 4
   Beat in the egg yolk and vanilla.
5. 5
   Mix in the sifted flour and cocoa.
6. 6
   Using your fingers, which have been run under cold water and dried, spread the batter over the baking sheet, completely covering it to the edges.
7. 7
   Beat the egg white until stiff and spread it over the batter.
8. 8
   Combine the cinnamon with the remaining 1/4 cup sugar, and sprinkle it over the egg white.
9. 9
   Bake for about 10 minutes.
10. 10
    Remove from the oven and immediately cut the pastry into about 24 diamond, square, or oblong shapes.
11. 11
    With a metal spatula, carefully remove the cookies from the sheet and cool.