3/4 c. Hershey cocoa
1/2 tsp. baking soda
2/3 c. butter, melted and divided
1/2 c. boiling water
2 c. sugar
2 eggs
1 1/3 c. all-purpose flour
1 tsp. vanilla
1/2 tsp. salt
1 c. Hershey semi-sweet chocolate chips
One-bowl Buttercream Frosting

Heat oven to 350 degrees. Grease rectangular pan, 13 x 9 x 2 inches, or two square pans, 8 x 8 x 2 inches. In medium bowl combine cocoa and baking soda. Blend in 1/3 cup melted butter. Add boiling water; stir until thickens; stir in sugar, eggs and remaining 1/3 cup melted butter, stir until smooth. Add flour, vanilla and salt; blend completely. Stir in chocolate chips. Pour into prepared pan(s).

Bake 35-40 minutes for rectangular pan, 30-35 minutes for square pans or until brownies begin to pull away from sides of pans. Cool completely in pan(s). Frost with One-bowl Buttercream Frosting.