Oreo Rice Krispie Treats

Oreo Rice Krispie Treats are the best no bake dessert for any occasion. Chunks of the beloved chocolate sandwich cookie are nestled into the crispy rice cereal, and the combination is scrumptious. Made with just 5 ingredients, this homemade rice krispie treats recipe is easy to make, share and enjoy! Makes 24 treats.

Love easy dessert recipes? You’ve got to try Chex Mix Puppy Chow and No Churn Peanut Butter Ice Cream with Pecans and Chocolate Chips.

Oreo Rice Krispie treats stacked on top of each other from above

Confession time: Oreos were my go-to stress snack when I was pregnant with my older daughter.

To the extent that when I was pregnant with our second daughter, a dear friend of mine stocked Oreos in her house for the duration, in case I needed an emergency snack.

While I don’t eat as many Oreos as I did during that time in my life, I do love one of the chocolate sandwich cookies.

And honestly, when you add these to a Crispy Rice Cereal Treat, there’s something magical.

Why I love this recipe:

Who doesn’t love an Oreo cookie and a crispy rice treat?  

Honestly, this combination, sometimes known as Cookies and Cream Rice Krispie Treats, is a match made in no-bake dessert heaven.

Basically, we’re taking a classic rice krispie treat and adding beloved chocolate sandwich cookies to it.

They’re simple to put together. While it requires turning on the stovetop, you’re not using it for long. (Alternately, you could melt the butter and marshmallows in the microwave, like I did for these Peeps Easter Rice Krispie Treats.)

The flavor is excellent—chocolate sandwich cookies with marshmallow and the crispy rice cereal just sing together.

You can dress them up or make them for any type of occasion, assuming you and your people love this flavor combination.

Other easy desserts to make with your kids: Cheesecake Dip | Sweet and Savory Party Mix | Blueberry Cheesecake Popsicles | Oreo Truffles | Peanut Butter Pretzel Bites

Got sweet teeth? Check out my Dessert Recipe Index for inspiration.

Oreos and other crispy rice treat ingredients in bowls on a pink surface

What you need to make this recipe:

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Let’s talk ingredients!

In addition to the tools above, you’re going to need some ingredients to make this recipe, too! Chances are, you might already have some of them in your fridge or pantry. Scroll down to the recipe card for the full measurements and instructions.

Here’s what you need:

  • Crispy rice cereal—use your favorite brand! I’ve been known to make these with the whole wheat variety for my kids, but honestly, any variation is good.
  • Butter—you can use salted or unsalted butter. If using salted butter, don’t add the salt. If using unsalted butter, you need a little extra sprinkle of salt. I have more details about this below so you know how much to add, promise.
  • Vanilla extract—this adds just a little more flavor, in my opinion, and the combination of vanilla with marshmallow and butter is simply divine.
  • Marshmallows—mini marshmallows melt best and easiest!
  • Oreos—these are the piece de resistance. You can use other chocolate sandwich cookies if you’d rather, but choose the kind that are regular-sized (and not double or triple stuffed.)

Rice Krispy Treats variations

Collage showing how to make rice krispie treats

How to make Rice Krispie Treats with Oreos

Prepare the pan. I like to use a 9”x13” baking dish and line it with wax paper. This makes removing the crispy rice treats easy. Give the paper a spritz with nonstick cooking spray, too. Set aside.

Measure out the cereal into a large bowl, and set aside. We won’t be mixing these in the bowl itself , but having this measured out before our marshmallow-butter mixture is melty is important.

Crush the chocolate sandwich cookies. I like to leave them in decent chunks, so you can break them up with your fingers. Use a knife to make them into chopped Oreos. Or put them into a bag and crush them with a kitchen mallet or a rolling pin.

Make the treat base. In a large pot, melt the butter over low heat and stir in the marshmallows. Continually stir until these have melted completely, then splash in the vanilla and stir.

Collage showing how to put together an Oreo Rice Krispie treat in the pot and then how to set it in the pan

Mix the treats. Turn off the heat, and pour the cereal into the pot with the marshmallow mixture. Stir quickly until the cereal is completely coated.

Add the Oreo cookies. Stir quickly until integrated into the crispy rice mixture.

Make the bars. Pour the mixture into the prepared baking pan. Gently spread it into an even layer with a rubber spatula. If your spatula begins sticking, spritz with the nonstick cooking spray.

Pro tip!

Do not press down hard on the mixture because this will make your treats more compact.

Let the treats cool for about an hour, then cut into rectangles with a sharp knife.

Three crispy rice treats with Oreos inside lined up on a pink counter

Frequently Asked Questions

What can you use instead of marshmallows for Rice Crispy Treats?

Marshmallows are an integral part of krispie treats, so I do not recommend finding a substitute for them.

How long do Rice Krispie Treats take to harden?

It’ll be partially dependent on the weather (and if it’s raining/humid where you are, it might take longer), but 30 minutes to an hour is the general timeline.

Why are my Rice Krispie Treats rock hard?

If your treats are hard as a rock, it could have something to do with the fact that the heat was too high as you melted the marshmallows, which could cause some crystallization in the sugars.

What happens if you put too much butter in Rice Krispie Treats?

I’ve read that too much butter will lead to soggy krispie treats. 

Can you use old marshmallows for Rice Krispie Treats?

No. As marshmallows sit in the pantry, they lose moisture and their texture changes. They will have a harder time melting, and when they do, they will become more of a gelatinous blob. They run the risk of overcooking and making tougher krispie treats because you’ll need to cook them for longer.

Cookies and cream Rice Krispie treats stacked on a pink countertop

Quick Tips and Tricks for the best crispy rice treats

  • Use fresh marshmallows. They melt more easily and will provide a better texture for your treats. (How do I know this? I’ve attempted this recipe with older marshmallows, and they didn’t turn out quite right.)
  • Store in an airtight container at room temperature for 2-3 days. After this point, the treats will begin to harden.
  • Make them your own. There are so many fun varieties of Oreos that you could take and make these treats for any kind of festivity and with any combination of flavors!

No bake dessert recipes:

Oreo Rice Krispie treats stacked on top of each other from above
Yield: 24 treats

Oreo Rice Krispie Treasts

Prep Time: 5 minutes
Cook Time: 10 minutes
Cooling Time: 1 hour
Total Time: 1 hour 15 minutes

Oreo Rice Krispie Treats are the best no bake dessert for any occasion. Chunks of the beloved chocolate sandwich cookie are nestled into the crispy rice cereal, and the combination is scrumptious. Made with just 5 ingredients, these homemade rice krispie treats are easy to make, share and enjoy!

Ingredients

  • 20 Oreo Cookies (regular-sized) (8 oz. or 230g)
  • 6 tablespoons unsalted butter (80g)
  • 10 oz. mini marshmallows
  • 1 teaspoon vanilla extract
  • 6 cups crispy rice cereal (7.2 oz. or 200g)

Instructions

  1. Line a 9”x13” baking dish with wax paper. This will make removing the crispy rice treats easy. Set aside.
  2. Pour the crispy rice cereal into the large bowl, and set aside.
  3. Break the Oreo cookies up with your hands into bite-sized pieces. (You can also put them into a plastic bag and crush them with a rolling pin if you’d rather.)
  4. In a large pot, melt the butter over low heat.
  5. Once the butter has melted, stir in the marshmallows. Continually stir until completely melted.
  6. Add the splash of vanilla, and stir.
  7. Pour the cereal into the marshmallow mixture, and stir quickly until the cereal is coated.
  8. Add the cookie chunks, and stir until they’re scattered throughout.
  9. Pour the mixture to the prepared baking pan and gently spread the mixture into an even layer with a rubber spatula. (If the mixture begins sticking, spritz the spatula with the nonstick cooking spray.) Do not press down hard on the mixture, as your treats will be more compact.
  10. Let the treats cool completely, about 1 hour.
  11. Cut into squares with a sharp knife, and enjoy within 2-3 days.

Notes

I cut my treats into squares. If you cut yours larger or smaller, you will have a different number.

How to store: Store in an airtight container at room temperature for 2-3 days. After this point, the treats will begin to harden.

Add some variety: If you love trying different Oreo cookie flavors and combinations, add those to this treat recipe! It'll change the overall flavor (depending on the cookie itself), but would make for a fun treat!

Nutrition Information:

Yield:

24

Serving Size:

1

Amount Per Serving: Calories: 134Total Fat: 5gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 8mgSodium: 84mgCarbohydrates: 22gFiber: 0gSugar: 11gProtein: 1g

Nutrition facts are an estimate and not guaranteed to be accurate.

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