Easy Marbled Peanut Butter Brownies

1 18-23-ounce Brownie Mix
1/2 cup Peanut Butter (creamy or chunky)

1. Prepare brownie mix batter according to package directions. Pour into a 9-inch baking pan.
2. Place peanut butter in a microwave-safe bowl and microwave on high for 30 seconds, or until melted. Stir, then drizzle peanut butter over brownie batter and swirl with a butter knife to marble.
3. Bake according to package directions. Let cool completely in the pan on a wire rack.
makes 16 servings