Stuffed Peanut Butter Rice Krispie Treats
If you’re a fan of that delightful combination of sweet and salty, you’re in for a treat! These Stuffed Peanut Butter Rice Krispie Treats are the ultimate indulgence for peanut butter lovers. Imagine the classic Rice Krispie treat, enriched with a creamy, dreamy peanut butter filling and a hidden surprise of frozen Reese’s Peanut Butter Cups. It’s a nostalgic dessert reimagined, perfect for any occasion or just your everyday craving. Let’s dive into how you can whip up this delicious treat in your kitchen!
Top Reasons to Make Stuffed Peanut Butter Rice Krispie Treats

- Irresistibly delicious with a perfect blend of flavors.
- Easy to make with minimal ingredients and effort.
- Perfect for parties, bake sales, or a sweet treat at home.
- Customizable with various fillings or toppings.
- Brings back childhood memories with a modern twist.
Shopping List
- 6 cups of Rice Krispies cereal
- 1 cup of sugar
- 1 cup of light corn syrup (Karo brand is recommended)
- 1 cup of creamy peanut butter
- 1 teaspoon of vanilla extract
- 1 10-ounce bag of snack-sized Reese’s Peanut Butter Cups (frozen for about 30 minutes)
Equipment & Tools
- Large saucepan – for melting the ingredients.
- Wooden spoon or spatula – for mixing.
- 9×13 inch baking dish – for shaping the treats.
- Parchment paper – for easy cleanup and removal.
- Mixing bowl – optional for combining ingredients.
Cooking Stuffed Peanut Butter Rice Krispie Treats: The Process

Step 1: Prepare Your Ingredients
Start by gathering all your ingredients. Ensure your Reese’s Peanut Butter Cups have been frozen for at least 30 minutes. This step helps them hold their shape when you stuff them into the Rice Krispie mixture.
Step 2: Melt the Mixture
In a large saucepan over medium heat, combine the sugar and light corn syrup. Stir until the sugar dissolves and the mixture begins to boil. Allow it to boil for about 1 minute without stirring.
Step 3: Add Peanut Butter and Vanilla
Remove the saucepan from heat and stir in the creamy peanut butter and vanilla extract until completely smooth and well blended.
Step 4: Combine with Rice Krispies
In a large mixing bowl, pour the melted peanut butter mixture over the Rice Krispies cereal. Gently fold the cereal into the mixture until all the cereal is evenly coated.
Step 5: Layer the Mixture
Line your 9×13 inch baking dish with parchment paper, leaving some overhang on the sides for easy removal later. Press half of the Rice Krispie mixture into the bottom of the prepared dish, creating an even layer.
Step 6: Add the Filling
Take your frozen Reese’s Peanut Butter Cups and place them evenly over the first layer of Rice Krispies. Press them down slightly so they stick.
Step 7: Top It Off
Using the remaining Rice Krispie mixture, carefully press it on top of the Reese’s layer, ensuring it covers the filling completely.
Step 8: Let It Set
Allow your treats to cool at room temperature for about 30 minutes. Once set, you can lift them out of the dish using the parchment paper.
Step 9: Cut and Serve
Using a sharp knife, cut the treats into squares or rectangles. Serve immediately or store them for later enjoyment!
Fresh Seasonal Changes

- In the fall, add a sprinkle of pumpkin spice to the peanut butter mixture for a seasonal twist.
- During the summer, mix in mini marshmallows or dried fruits like cranberries for a refreshing change.
- In the winter, consider using peppermint-flavored candies instead of Reese’s for a minty version.
- Springtime calls for adding fresh berries or a drizzle of white chocolate on top for a fruity touch.
Avoid These Traps
When making your Stuffed Peanut Butter Rice Krispie Treats, keep these pitfalls in mind:
- Don’t overheat the sugar and corn syrup mixture; boiling for too long can make the treats hard.
- Avoid squishing the Rice Krispies too tightly when pressing them into the pan; this can lead to a dense texture.
- Make sure to freeze the Reese’s Peanut Butter Cups adequately; if they are too soft, they will melt into the mixture.
- Don’t skip the parchment paper; it makes removal and cutting so much easier!
Storing, Freezing & Reheating
Your Stuffed Peanut Butter Rice Krispie Treats can be stored at room temperature in an airtight container for up to a week. If you want to keep them longer, you can freeze them. Just wrap each piece individually in plastic wrap and place them in a freezer-safe bag. They’ll stay fresh for about 2-3 months. When you’re ready to enjoy, simply thaw them at room temperature or pop them in the microwave for a few seconds to soften.
Troubleshooting Q&A
What should I do if my Rice Krispie treats are too hard?
If your treats turned out too hard, it’s likely that the sugar mixture was boiled for too long. In the future, keep an eye on the timer and remove it from heat as soon as it boils for one minute.
Can I use a different type of cereal?
Absolutely! While Rice Krispies are traditional, you can substitute with similar cereals like Cornflakes or even puffed rice for a unique texture.
What if I don’t like peanut butter?
If peanut butter isn’t your thing, try using almond butter, sunflower seed butter, or even Nutella for a different flavor profile.
How do I know when the treats are set?
The treats should feel firm to the touch and hold their shape when you lift them out of the pan. If they feel sticky, give them a bit more time to cool.
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Before You Go
Thank you for exploring this delightful recipe for Stuffed Peanut Butter Rice Krispie Treats. They’re perfect for sharing, gifting, or just indulging in on your own. Don’t forget to experiment with different fillings and toppings to make this recipe your own. Enjoy the process and the delicious results!

Stuffed Peanut Butter Rice Krispie Treats
Ingredients
Equipment
Method
- Gather all your ingredients. Make sure your Reese's Peanut Butter Cups have been frozen for at least 30 minutes.
- In a large saucepan over medium heat, combine the sugar and light corn syrup. Stir until the sugar dissolves and the mixture begins to boil. Allow it to boil for about 1 minute without stirring.
- Remove the saucepan from heat and stir in the creamy peanut butter and vanilla extract until completely smooth and well blended.
- In a large mixing bowl, pour the melted peanut butter mixture over the Rice Krispies cereal. Gently fold the cereal into the mixture until all the cereal is evenly coated.
- Line your 9x13 inch baking dish with parchment paper, leaving some overhang on the sides for easy removal. Press half of the Rice Krispie mixture into the bottom of the prepared dish.
- Place the frozen Reese's Peanut Butter Cups evenly over the first layer of Rice Krispies. Press them down slightly so they stick.
- Using the remaining Rice Krispie mixture, carefully press it on top of the Reese's layer, ensuring it covers the filling completely.
- Allow your treats to cool at room temperature for about 30 minutes. Once set, lift them out of the dish using the parchment paper.
- Using a sharp knife, cut the treats into squares or rectangles. Serve immediately or store them for later enjoyment!
Notes
- Store in an airtight container at room temperature for up to a week.
- Freeze individually wrapped treats for up to 2-3 months.
- Thaw at room temperature or microwave briefly before serving.
