1 1/2 c. butter, melted
3 c. sugar
1 tbsp. vanilla
5 eggs
2 c. all-purpose flour
1 c. Hershey's cocoa
1 tsp. baking powder
1 tsp. salt
24 small (1 1/2 inch) York peppermint patties

Heat oven to 350 degrees. Grease 13x9x2 baking pan. In large bowl stir together butter, sugar and vanilla. Add eggs, stir until well blended. Stir in flour, cocoa, baking powder and salt, blend well. Reserve 2 cups batter, set aside. Spread remaining batter in prepared pan. Arrange patties in single layer over batter, about 1/2 inch apart. Spread reserved 2 cups of batter over patties. Bake 50 to 55 minutes or until brownies begin to pull away from sides of pan. Cool completely.