1 cup butter or margarine
1/3 cup unsweetened cocoa
2 cups all-purpose flour
2 cups granulated sugar
1 teaspoon baking soda
1/2 teaspoon salt
1/2 cup buttermilk
2 slightly beaten eggs
1 1/2 teaspoons vanilla extract

In saucepan combine butter, cocoa and 1 cup water. Bring to boil, stirring constantly. Set aside.

In large bowl stir together flour, sugar, baking soda and salt; stir in eggs, buttermilk and vanilla extract. Add cocoa mixture, mix until blended. Pour into greased 15 x 10 x 1-inch or 13 x 9 x 2-inch pan. Bake at 375 degrees F for 20 minutes. Immediately pour Cocoa-Buttermilk Frosting over brownies, spread evenly. Cool; cut into bars.

Makes 50 to 60 brownies.

Cocoa-Buttermilk Frosting
1/4 cup butter
3 tablespoons cocoa
3 tablespoons buttermilk
2 1/4 cups sifted confectioners' sugar
1/2 cup chopped nuts
1/2 teaspoon vanilla extract

Stir butter, cocoa and buttermilk in saucepan and bring to a boil. Remove and beat in sugar, stir in nuts and vanilla extract.