Peanut Butter Swirl Brownies

Preparation : In a mixing bowl, cream butter and sug- ars. Add eggs and milk; mix well. Com- bine flour, baking powder and salt; add to~creamed mixture and mix well. Di- vide batter in halt. To one portion, add peanut butter and peanut butter chips; mix well. To the other portion, add the co- coa and chocolate chips; mix well. In a greased 9-in. square baking pan, spoon chocolate batter in eight mounds in a checkerboard pattern. Spoon seven mounds of peanut butter batter between the chocolate batter. Cut through batters with a knife to swirl. Bake at 3500 for 25- 30 minutes or until a toothpick inserted near the center comes out clean. Cool on a wire rack.