Chocolate Sheet Cake Brownies - cooking recipe

Ingredients

2 c. flour
2 1/2 c. sugar
2 sticks butter
4 heaping Tbsp. cocoa
1 c. water
1/2 c. buttermilk
1 tsp. vanilla
2 eggs, slightly beaten
1 tsp. baking soda
1 to 2 c. chopped walnuts
1 (12 oz.) pkg. Reese's peanut butter chips (optional)

Preparation

Mix flour, sugar and baking soda together; set aside.
Mix together in a saucepan the butter, cocoa and water; bring to a boil.
Pour this mixture over dry ingredients; mix well.
Add buttermilk, vanilla, slightly beaten eggs, chopped walnuts and, if desired, Reese's peanut butter chips.
Mix altogether well.
Pour into greased flat 11 x 16-inch cookie sheet or 9 x 13-inch cake pan.
Bake at 400\u00b0 for 20 minutes.
Frost while cake is hot.