Bottom-of-the-Cookie-Jar Peanut Butter-Marshmallow-Graham Bars

Grease (or line with cooking parchment paper) 13x9-inch (3-quart) baking dish.

In large heavy-bottomed pan, heat butter, peanut butter and marshmallows over medium-low heat, stirring frequently, until mixture is melted and smooth.

Remove from heat; stir in cereal and cookie crumbs. Dump mixture into baking dish; smooth it into an even layer.

In medium microwavable bowl, microwave chocolate chips uncovered on High in 30-second increments, stirring after each, until melted and smooth. Drizzle over top of bars. Cover; place in fridge 1 hour.

Cut into 6 rows by 3 rows. Store covered at room temperature or in the fridge.