1 stick butter
1/4 c. cocoa
1/3 c. buttermilk
Dash of salt
1 lb. powdered sugar
1 tsp. vanilla
1/2 c. walnuts

Bring butter, cocoa and salt and buttermilk to boil, remove from heat, stir in sugar, vanilla and nuts. Great on brownies or such. Spread fast as it hardens fast. Softens after on cake.