Fluffernutter Rice Krispie Treats

Peanut Butter Rice Krispie Treats topped with melted Reese’s PB morsels and mini Reese’s PB cups. A delicious twist on a childhood favorite!

Rice Krispie Treats are our specialty here. Have you tried my new Pumpkin Pie Rice Krispie Treats yet? Or give our Fruity Pebbles Treats a try next!

What is a Fluffernutter

A fluffernutter is a sandwich made with marshmallow fluff and peanut butter. But it’s so much more than a sandwich! It’s an EXPERIENCE.

As a kid, fluffernutter’s were the quick and easy snack or lunchbox treasure. Big bites of peanut butter, fluff and wonder bread were washed down with an ice cold glass of milk after school.

I might not be a kid any more but I still love peanut butter and marshmallow fluff. They’re the perfect addition to another lifelong favorite of mine: Rice Krispie Treats!

Fluffernutter Rice Krispie Treats are soft, chewy no-bake peanut butter krispie treats with ribbons of gooey marshmallow and topped with mini peanut butter cups. Perfect rice krispies recipe for peanut butter lovers!

Our fluffernutter cookies take that classic peanut butter marshmallow combo and create a chewy treat!

Ingredient Notes

• Marshmallows – You will need both mini marshmallows AND regular size marshmallows to make these treats.
• Peanut butter – We used creamy peanut butter, but crunchy peanut butter will work too if you like the texture.
• Peanut butter morsels – There are melted and spread over the tops of the rice krispie treats.
• Mini Reese’s peanut butter cups – We pressed them on top of the bars at the end because chocolate makes everything better!

You’ll also need puffed rice cereal (Rice Krispies) and unsalted butter for this Fluffernutter Rice Krispie Treats recipe.

Tips and Tricks

• Line your baking dish! Rice Krispie Treats are STICKY! Place a square of parchment paper on the bottom of your baking dish to prevent sticking. The parchment makes it easier to lift the finished treats from the pan, too!
• Use the butter wrapper or the plastic marshmallow bag to press the rice cereal mixture into the pan to keep your fingers from getting sticky.
• Press LIGHTLY. When you add the treat mixture to the pan, use as gentle of a touch as possible. The harder you press, the harder and denser your finished Fluffernutter Rice Krispie Treats will be.
• Store these bars in an airtight container at room temperature. Enjoy within 5 days for best taste–but I bet you’ll eat them up long before then!

Recipe FAQs

This delicious krispie treat recipe was inspired by one of my favorite fudge recipes. Fluffernutter Fudge!

Just craving Reese’s peanut butter cups? I’ve got ya covered with these Reese’s Peanut Butter Bars.

More Rice Krispie Treat Recipes

• Mint Chocolate Chip Rice Crispy Treats Recipe
• Krispie Treat Fudge
• Scotcheroos
• Neapolitan Krispie Treats
• Halloween Rice Krispie treats

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Fluffernutter Krispie Treats

4.85 from 19 votes

By: Aimee

Peanut Butter Rice Krispie Treats topped with melted Reese’s PB morsels and mini Reese’s PB cups. A delicious twist on a childhood favorite!

Prep Time: 5 minutes minutes

Cook Time: 5 minutes minutes

Additional Time: 1 hour hour

Total Time: 1 hour hour 10 minutes minutes

Servings: 16 bars

Ingredients 

1x2x3x

• ▢ 10 ounce bag regular sized marshmallows
• ▢ ¼ cup unsalted butter
• ▢ ½ cup creamy peanut butter
• ▢ 5 cups Rice Krispies cereal
• ▢ 1 ¼ cup mini marshmallows
• ▢ 1 bag Reese's peanut butter morsels, melted 10 ounce
• ▢ 2 bags Reese's Mini Peanut Butter Cups 8 ounce each

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Instructions 

• In a large pot, melt butter over medium heat. Add marshmallows and turn heat to low. Stir until completely smooth. Remove from heat and quickly stir in peanut butter. Add cereal.
• Fold in the mini marshmallows. Pour Krispies treats into a 9inch square baking dish lined with parchment paper (or buttered foil). DO NOT PRESS them in tightly. Just very gently even the top of the treats (I use the butter wrapper or marshmallow bag wrapper to press it in). Spread melted peanut butter morsels over the top.
• Top the melted peanut butter morsels with the peanut butter cups. Press those in so they stick! Allow to set, about one hour. Cut into squares and store in an airtight container. ENJOY.

Notes

Line your baking dish! Rice Krispie Treats are STICKY! Place a square of parchment paper on the bottom of your baking dish to prevent sticking. The parchment makes it easier to lift the finished treats from the pan, too!

Use the butter wrapper or the plastic marshmallow bag to press the rice cereal mixture into the pan to keep your fingers from getting sticky.

Press LIGHTLY. When you add the treat mixture to the pan, use as gentle of a touch as possible. The harder you press, the harder and denser your finished Fluffernutter Rice Krispie Treats will be.

Store these bars in an airtight container at room temperature. Enjoy within 5 days for best taste–but I bet you'll eat them up long before then!

Nutrition

Calories: 189kcal, Carbohydrates: 28g, Protein: 3g, Fat: 8g, Saturated Fat: 3g, Polyunsaturated Fat: 4g, Cholesterol: 8mg, Sodium: 113mg, Fiber: 1g, Sugar: 14g

Course: Rice Krispie Treats

Cuisine: American

Did you make this recipe?Mention @shugarysweets or tag #shugarysweets!