Peanut Butter Chocolate Rice Krispie Bars

peanut butter rice krispie bar on a white plate.

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Peanut Butter Chocolate Rice Krispie Bars

Soft and gooey Peanut Butter Chocolate Rice Krispie Bars taste like a peanut butter cup! They’re loaded with marshmallows, melted chocolate, and creamy peanut butter, then topped with more chocolate and peanut butter for even more chocolate peanut butter flavor.

Prep Time5

Cook Time5

Course: Dessert, Snack

Cuisine: American

Servings:

Calories: 202kcal

Author: Cara Lanz

Ingredients

3 tablespoons unsalted butter
1 cup dark chocolate chips
¾ cup creamy peanut butter
8 cups mini marshmallows, divided
6 cups Rice Krispies cereal

Optional Toppings

¼ cup dark chocolate chips
¼ teaspoon oil
2 tablespoons creamy peanut butter
1 tablespoon mini chocolate chips
flaky sea salt

Instructions

Line a 9 x 13 pan with parchment paper or aluminum foil with an overhang for easy removal.
In a large pot or Dutch oven, melt butter, chocolate, and peanut butter over low heat. Add 6 cups marshmallows and gently stir until melted.
Remove the pot from the heat and stir in the Rice Krispies and 2 cups of mini marshmallows. Gently press the mixture into the prepared pan, using buttered fingers or spatula if necessary. Set aside to cool.
If desired, add toppings:
Melt ¼ cup chocolate chips with ¼ teaspoon vegetable oil in the microwave for about 30 seconds. Melt 2 tablespoons peanut butter for 10-20 seconds. Drizzle chocolate and peanut butter over the rice krispie bars. Sprinkle with mini chocolate chips and flaky salt while the chocolate and peanut butter are still wet.
Allow the toppings to firm up -- place in the refrigerator to speed it up. If the bars are very cold, bring them back to room temperature before cutting into squares.

Notes

Melt the marshmallow mixture over low heat. If the heat is too high, it can cook the marshmallows and make the bars hard.
Gently press the cereal mixture into the pan, as too much pressure can compact the cereal and make the bars hard.
For even more chocolatey flavor, swap out the Rice Krispies with Cocoa Krispies!
If you refrigerate the cereal treats to firm up the toppings, bring them back to room temperature before cutting — they can be hard to cut when they’re really cold.

Nutrition