Triple-Layer Pretzel Brownies 3 cups crushed pretzels 3/4 cup butter, melted 3 Tbsp. sugar Combine in a small bowl & press into an ungreased 13 x 9 baking dish. Bake at 400 degrees for 8 minutes Prepare a brownie mix of choice according to box directions. Pour over prepared crust & bake for 35-40 minutes (do not over-bake) Melt 1/4 cup semisweet chocolate chips in 1/2 cup peanut butter in microwave. stir until smooth. Spread over top of baked & cooled brownies.