Shortbread Brownies

This recipe is from Jenny. She says she cuts them into 1 1/2 inch squares. Tasty, tasty.

1 cup all-purpose flour
1/4 cup packed brown sugar
1/2 cup butter
3/4 cup miniature semisweet chocolate pieces
1 1/3 cups granulated sugar
3/4 cup all-purpose flour
1/2 cup unsweetened cocoa powder
1 1/2 tsp baking powder
1/2 tsp salt
3 eggs
1/3 cup butter, melted
1 Tbsp vanilla

1. Preheat oven to 350. Line a 9x9x2 inch baking pan with foil; set aside. IN mixing bowl stir together the 1 cup flour and the brown sugar. Cut int he 1/2 cup butter until mixture resembles coarse crumbs. Stir in 1/4 cup of the chocolate pieces. Press into prepared pan. Bake for 8 minutes.
2. Meanwhile, in a large mixing bowl stir together granulated sugar, the 3/4 cup flour, the cocoa powder, baking powder, and salt. Add eggs, the melted butter, and vanilla; beat by hand until smooth. Stir in the remaining 1/2 cup chocolate pieces. Carefully spread over crust in pan. Bake for 40 minutes. Cool in pan on a wire rack. Remove brownies from pan by lifting up on foil. Cut into bars. Makes 24 bars.