In a large microwave-safe bowl, melt candy coating; stir until smooth. Stir in peanut butter; thinly spread onto a waxed paper-lined baking sheet. , In another microwave-safe bowl, melt chocolate chips; stir until smooth. Drizzle over candy coating mixture; cut through mixture with a knife to swirl the chocolate. Chill until firm., Break into pieces. Store in an airtight container in the refrigerator.