Chocolate & Peanut Butter Crispy Bars

LINE a 13x9-inbaking pan with parchment paper, letting ends extend up sides; PREPARE and BAKE brownie mix according to package directions, using prepared pan.

REMOVE from oven; COOL brownies on a wire rack for 30 minutes; REFRIGERATE until cold.

SPREAD chunky peanut butter in a layer over brownies.

PLACE chocolate chips and creamy peanut butter In a large, microwave-safe bowl; MICROWAVE in 30-second intervals until melted; STIR until smooth.

STIR in Rice Krispies; spread over chunky peanut butter layer.

COVER; REFRIGERATE until set, about 45 minutes.

REMOVE brownies from pan by lifting with parchment paper; CUT into 1" bars.

STORE in an airtight container in the refrigerator.