1 c. butter (melted)
2 c. sugar
1 c. flour
2/3 c. Hershey's cocoa
1/2 tsp. baking powder
1/2 c. milk
3 tsp. vanilla extract
1 c. walnuts, chopped
1 (12 oz.) pkg. chocolate chips
1 (14 oz.) sweetened condensed milk
2 eggs

Preheat oven to 350 degrees. Combine butter, sugar, flour, cocoa, baking powder, eggs, milk, 1 1/2 teaspoons vanilla. Beat well. Stir in walnuts. Bake 40 minutes until brownies begin to pull from sides of pan. Just before brownies are done, melt chips and sweetened condensed milk and remaining vanilla. Spread over hot brownies. Cool. Chill; cut into bars.