01 - Line an 8x8-inch baking pan with parchment paper, allowing overhang on sides for easy removal later.
02 - In a large saucepan over medium-low heat, combine the peanut butter, honey, and butter. Stir continuously until melted and smooth, then remove from heat.
03 - Gently fold the Honey Chex cereal into the warm peanut butter mixture until evenly coated.
04 - Transfer the mixture to the prepared pan. Press firmly and evenly using a spatula or the back of a spoon to create a compact base layer.
05 - Place chocolate chips and 2 tablespoons peanut butter in a microwave-safe bowl. Microwave in 30-second intervals, stirring between each, until completely smooth and melted.
06 - Pour the melted chocolate mixture evenly over the cereal base. Use a spatula to spread into a uniform layer.
07 - Refrigerate for at least 1 hour until the chocolate is completely set and firm.
08 - Lift the bars from the pan using the parchment paper overhang. Cut into 16 equal-sized bars and serve.