Cookies and Cream Rice Krispie

Category: Let's Bake Something Wonderful

Enjoy the best of both worlds with these crispy bars filled with rice krispies, melted marshmallows, and chunks of chocolate cookies. A blend of salty butter and vanilla creates a rich base, while a splash of maple syrup adds a gentle sweetness. After everything is mixed and pressed in a pan, a quick chill sets them for easy slicing. Make them plant-based by swapping in vegan butter or marshmallow fluff if you like. These treats deliver luscious chewy bites with pops of cookie crunch and are perfect for gatherings, after-school snacks, or anytime you need a quick sweet fix. Simple steps, no baking needed, and ready in just 20 minutes!

Rose
By Sophie Parker Sophie Parker
Updated on Wed, 21 May 2025 12:47:17 GMT
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Craving something intensely nostalgic but with a twist These Cookies and Cream Rice Krispie treats turn everyone’s favorite cereal bar into a cookies studded delight Every bite is gooey crisp and has just the right punch of Oreo flavor I make these whenever I want a low fuss dessert that feels anything but ordinary

The first time I brought these to a picnic they disappeared before I could even get a taste Now my family insists I double the batch every time

Ingredients

  • Salted butter: Adds rich flavor and a soft texture Use European style butter for an extra creamy base or swap vegan butter for a dairy free version
  • Mini marshmallows: The gooey binder that gives the bars their stretch Fresh marshmallows melt easiest Avoid stale or dried out ones
  • Vanilla extract: Lifts the flavor and makes the treats taste homemade Go for pure vanilla if possible for best aroma
  • Maple syrup: Adds a subtle caramel note and a touch of complexity Real maple syrup works best but pancake syrup can stand in a pinch
  • Crushed Oreo cookies: The showstopper ingredient Use classic or double stuffed For a vegan recipe grab accidentally vegan sandwich cookies
  • Rice krispie cereal: The classic base Choose a brand that is nice and crisp for the right texture Stale cereal will result in chewy bars

Step-by-Step Instructions

Melt the Butter:
In a heavy bottomed six quart pot slowly melt the butter over medium low heat Stir continuously so the butter does not brown or burn The aroma will start to smell nutty and inviting
Combine Marshmallows and Add Flavors:
Pour in mini marshmallows and keep stirring until the mixture becomes silky and smooth Drop in the vanilla and maple syrup blending thoroughly The mixture should be glossy and stretch a little when pulled up with a spoon
Add the Cookies:
Break Oreo cookies into medium crumbs simply crushing them gently with your hands Sprinkle the cookies right onto the gooey marshmallow mixture Stir gently so there are chunks throughout not just crumbs
Fold in Rice Krispies:
Pour in the cereal and use a sturdy spatula to fold the mixture together Work quickly so the cereal stays crunchy and coated evenly with marshmallow
Press into Dish:
Line a nine inch square baking dish with parchment paper Pour all the mix into the dish Gently press it into the corners with clean hands or a greased spatula Take care not to compress the mix too much or the finished bars will be hard instead of chewy
Chill and Slice:
Cool in the fridge for at least ten minutes up to twenty four hours This firms them up for clean slicing Remove from the pan and cut into even squares using a sharp knife
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You Must Know

  • Naturally egg free and can be dairy free
  • Great make ahead treat and perfect for potlucks
  • Stays soft for several days if stored well

I love how the crushed Oreos transform this treat into something brand new The first time we made them with my niece we ended up laughing over who got the biggest cookie chunk in their piece

Storage Tips

Store these treats in an airtight container in the fridge They will stay soft and fresh for up to six days Stack with parchment or wax paper between layers to prevent sticking If you want them extra gooey let them sit at room temperature for a few minutes before eating

Ingredient Substitutions

You can swap vegan butter for regular for a completely dairy free dessert For gluten free needs use certified gluten free crispy rice cereal and gluten free chocolate sandwich cookies Marshmallow fluff will work in place of marshmallows just use two and a half cups for the right texture

Serving Suggestions

These bars are perfect for taking along to school events picnics parties or movie nights For an extra fancy touch drizzle some melted chocolate over the top or serve with a scoop of vanilla or cookies and cream ice cream They are crowd pleasers that disappear fast wherever you bring them

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Cookies and Cream Rice Krispie | tastybysophie.com

A Cookie Inspired Dessert

Turning classic rice krispie treats into a cookies and cream version brings together two beloved treats into one When Oreos were first added to our family baking rotation it became a go to for celebrations Birthdays and sleepovers are not the same without them

Recipe FAQs

→ What type of butter works best?

Salted butter adds extra flavor, but vegan butter can also be used for a plant-based option.

→ Can I use whole marshmallows or fluff?

Mini marshmallows or marshmallow fluff both melt smoothly; if using fluff, adjust to 2 1/2 cups.

→ Do I have to chill them before cutting?

Chilling for 10 minutes helps the bars set, making slicing cleaner and serving easier.

→ How long do these bars stay fresh?

Store in the fridge for up to 6 days in an airtight container for best texture and taste.

→ Can the dessert be made vegan?

Yes! Use vegan butter and dairy-free marshmallow fluff to enjoy a fully plant-based version.

→ Why not press the mixture too firmly?

Press gently to keep bars soft and chewy—pressing too hard can make them tough to bite.

Cookies and Cream Rice Krispie

Crispy rice treats swirled with marshmallows and crushed cookies for a quick, crowd-favorite dessert.

Prep Time
5 min
Cook Time
15 min
Total Time
20 min
By Sophie Parker: Sophie Parker

Category: Sweet Kitchen

Skill Level: Beginner

Cuisine: American

Yield: 9 Servings

Dietary Preferences: Vegetarian

Ingredients

01 5 tablespoons salted butter
02 4 cups mini marshmallows
03 1 teaspoon vanilla extract
04 ½ tablespoon maple syrup
05 1½ cups crushed Oreo cookies
06 5 cups rice krispie cereal

Steps

Step 01

In a large pot over medium-low heat, melt the salted butter. Add the mini marshmallows, vanilla extract, and maple syrup. Stir continuously until fully combined and melted. Reduce the heat to low.

Step 02

Crush Oreo cookies with your hands directly over the pot and add them to the marshmallow mixture. Mix thoroughly.

Step 03

Stir in the rice krispie cereal and mix well to ensure the ingredients are evenly distributed. Turn off the heat.

Step 04

Line a 9-inch square baking dish with parchment paper. Spread the mixture evenly into the dish and press it down gently to fill the corners without overpacking.

Step 05

Refrigerate the prepared dish for at least 10 minutes or up to 24 hours. Slice and serve once cooled.

Notes

  1. For a vegan option, substitute salted butter with vegan butter.
  2. If using marshmallow fluff, replace 4 cups of mini marshmallows with 2½ cups of fluff.
  3. Store in the refrigerator for up to 6 days.

Required Tools

  • 6-quart pot
  • 9-inch square baking dish
  • Parchment paper

Allergy Information

Check each ingredient for potential allergens and consult a healthcare professional if needed.
  • Contains dairy (butter)
  • Contains gluten (Oreo cookies)
  • May contain traces of nuts (Oreo cookies)

Nutritional Facts (per serving)

These details are provided for informational purposes and aren't a substitute for medical advice.
  • Calories: 258
  • Fats: 5 g
  • Carbohydrates: 51 g
  • Proteins: 3 g