Prepare Your Pan: Start by greasing a 9x9 inch baking pan or lining it with parchment paper to make removing the bars easier once they’re set.
Melt the Chocolate: In a microwave-safe bowl, place the milk chocolate chips. Microwave in 30-second intervals, stirring in between, until completely melted and smooth.
Mix the Peanut Butter Layer: In a large bowl, combine the peanut butter, powdered sugar, and vanilla extract. Mix until smooth and creamy.
Add Crunch: Fold the crushed Kit Kat bars and crispy rice cereal into the peanut butter mixture, ensuring everything is evenly coated.
Combine Layers: Pour half of the melted chocolate into the bottom of the prepared pan, spreading it evenly. Next, add the peanut butter mixture and flatten it with a spatula. Lastly, pour the remaining chocolate over the top and spread it out.
Chill: Refrigerate the pan for at least 2 hours, or until the chocolate is set.
Cut and Serve: Once chilled, remove from the pan and cut into squares. Enjoy your delicious creation!