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A stack of peanut butter rice krispies treats on blue plates.

Peanut Butter Rice Krispies Treats

Course Dessert
Cuisine American
Peanut Butter Rice Krispie Treats are a delicious spin on the familiar yet favorite sweet treat you know and love.
Prep Time 5 mins
Cook Time 10 mins
Total Time 15 mins
Servings 20 servings


  • 1/2 cup butter salted or unsalted
  • 20 ounces mini marshmallows
  • 3/4 cup creamy peanut butter preferably not a "natural" variety
  • 1 teaspoon vanilla extract
  • 8 cups Rice Krispies Cereal
  • Flakey salt optional, but worth it!


  • Spray a 9x13 inch baking dish with nonstick cooking spray, or grease with butter. Set aside.
  • Melt the butter in a large pot over medium heat until melted, then reduce the heat to low and stir in 15 ounces of the marshmallows.
  • Stir in the peanut butter. Stir continuously until the marshmallows and peanut butter melt completely. Remove from heat, then stir in the vanilla extract.
  • Pour in the Rice Krispies cereal and stir until about halfway mixed. Then stir in the remaining marshmallows. Mix until the marshmallows are evenly distributed.
  • Transfer the mixture to prepared dish. Make sure not to compress the mixture, which will lead to dense treats. Sprinkle a pinch of flaky salt evenly over the bars. Let set and cool for 30 minutes before cutting.


Storage - Store these in an airtight container at room temperature for about 3 days. These bars don’t necessarily need to be refrigerated because they’ll get hard, however, you can freeze a batch and reheat it when you want them. Freezing will allow them to last for about a month and a half! 


Calories: 232kcal | Carbohydrates: 35g | Protein: 3g | Fat: 10g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.2g | Cholesterol: 12mg | Sodium: 160mg | Potassium: 72mg | Fiber: 1g | Sugar: 18g | Vitamin A: 887IU | Vitamin C: 7mg | Calcium: 8mg | Iron: 4mg
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