These Easy Muddy Buddy Rice Krispies bars combine chewy marshmallow cereal with chocolate, peanut butter, and powdered sugar for a no-bake treat that’s irresistibly crunchy and sweet.
¼ cup unsalted butter
4 cups mini marshmallows (plus 1 cup reserved, optional)
½ tsp vanilla extract
½ cup creamy peanut butter
5 cups Rice Krispies cereal
1 cup semi-sweet chocolate chips
¼ cup peanut butter (for topping)
¾–1 cup powdered sugar
Line an 8×8 pan with parchment paper.
Melt butter in a large pot over low heat. Stir in 4 cups marshmallows and melt fully.
Add vanilla and ½ cup peanut butter. Stir until smooth.
Mix in Rice Krispies and optional 1 cup marshmallows. Press into pan gently.
In a microwave-safe bowl, melt chocolate chips and ¼ cup peanut butter together until smooth.
Spread chocolate over the cereal base. Let sit 5 minutes.
Sprinkle powdered sugar evenly over the top.
Chill 20–30 minutes if desired, then cut into squares.
Store at room temp up to 5 days or refrigerate for a firmer bar.
Add sprinkles, candies, or chopped nuts for variety.
Freeze in airtight containers for up to 1 month.