Oreo Rice Krispies Bars are the irresistible treats! With their combination of chewy marshmallows, crispy rice cereal, and crunchy chocolate sandwich cookies, these bars will satisfy your sweet tooth in just minutes!
A Timeless Treat
Rice Krispies Treats (or bars) have been around for decades, but it is only recently that inventive cooks have transformed these chewy, buttery delights into a variety of flavors and colors. One of these flavors is Oreo Rice Krispies Bars.
The original treats have a rich history, created by Kellogg’s employees in the 1930s. They quickly made their way onto Rice Krispies boxes and have been loved for nearly a century. As time went by, inventive cooks began transforming these chewy and buttery delights into a variety of flavors and colors.

Oreo Rice Krispies Bars with Chocolate Sandwich Cookies
In this delicious version, you incorporate crushed dark chocolate sandwich cookies, like Oreos. However, you can easily substitute another brand if you prefer. The cookies add a subtle chocolate flavor and a satisfying crunch without overpowering the classic gooeyness that people have cherished for decades.
Preparing the Cookies for Oreo Rice Krispies Bars
To begin, crumble or chop the chocolate sandwich cookies. There is no need to remove the cream inside. An effective method to break them is to place the cookies in a plastic bag and gently roll a rolling pin over the bag. Just remember to squeeze out excess air before sealing; this prevents the bag from bursting during the process.

Melting Marshmallows: Follow the Right Steps
Next, combine the crushed cookies and crispy rice cereal with the marshmallow mixture. This recipe calls for slightly less rice cereal than some others, creating an ideal balance that keeps the bars chewy and buttery. Once combined, pour the sticky mixture into a greased 9×13-inch pan for thin bars; for thicker bars, use a smaller pan.




Using Waxed or Parchment Paper for Easy Handling
To smooth out the mixture, place a sheet of waxed or parchment paper over the sticky top. Then, using a spoon or your hands, press down to evenly flatten the mixture. Paper will prevent the marshmallow mixture from sticking to your tools, making it simple to spread and shape.

Proper Storage for Oreo Rice Krispies Bars
After allowing the bars to cool, slice them into squares or use cookie cutters for fun shapes. These crispy rice bars stay fresh for approximately three days when stored in an airtight container or a plastic resealable bag. Enjoy this quick and easy treat!

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Oreo Crispy Rice Bars
Equipment
- 9 x 13-inch pan for thin bars, or use a smaller pan for thicker bars
- waxed or parchment paper
Ingredients
- ½ cup salted butter
- 10 ounces miniature marshmallows (about 6 cups of minis or 40 regular-size marshmallows)
- 2 teaspoons vanilla
- 1 pinch of salt
- 1 ½ cups chocolate sandwich cookies, chopped (Oreos used; measure after chopping)
- 4 cups crispy rice cereal
- cooking spray or butter to coat the pan
Instructions
- Spray the bottom and sides of a 9 x 13-inch pan with cooking spray (or use butter to coat the pan). Set aside.
- In a large pot, melt the butter over low heat. Add the marshmallows and stir until they melt. Turn off the heat. Continue to stir until the marshmallows are completely melted. Add the vanilla and salt. Stir to mix.
- Add the cereal and broken cookies and stir until all the rice cereal and cookies are coated in the marshmallow mixture.
- Place the mixture into the prepared pan. Place a sheet of waxed or parchment paper on top and use a large spoon (or your hands) to evenly spread out the mixture. The waxed paper will prevent the marshmallow mixture from sticking to the spoon or your hands.
- When cool, cut into squares or use a cookie cutter to cut shapes. Store in an airtight container. These bars will last about 3 days.
