Ingredients
1c softened butter
1c brown sugar
1 egg yolk
1t vanilla
1/4 t salt
2c flour
1 tub dark chocolate frosting
Preparation
Preheat oven to 350. Cream together softened butter and brown sugar. Add egg yolk, vanilla, salt, and flour. Press down batter into 9x13 pan. Bake 15-20 minutes. Spread about half of the tub of frosting across warm cookie. Sprinkle with nuts if desired.
