2 1/4 c. unsifted flour
2 1/2 tsp. baking powder
1/2 tsp. salt
2/3 c. butter, softened
2/3 c. smooth peanut butter
1 1/4 c. sugar
1 1/4 c. firmly packed brown sugar
1 tsp. vanilla
3 eggs
12 oz. pkg. chocolate chips, divided

Preheat oven to 350 degrees. In small bowl, combine flour, baking powder and salt. Set aside. In large bowl, combine butter, peanut butter, sugar, brown sugar and vanilla. Beat until creamy. Add eggs, one at a time, beating well after each addition. Gradually beat in flour mixture. Stir in 6 oz. (1 cup) chocolate chips. Spread in well-greased 15 x 10 x 1 inch pan. Bake 35 minutes. Remove from oven; sprinkle top with remaining 1 cup chips. Let stand 5 minutes until shiny and soft. Spread evenly over top of brownies.