Biscoff cookie butter rice krispies treats take a classic flavor to the next level. They’re a quick and easy dessert that is perfect for any occasion. This also work with chocolate hazelnut spread (such as Nutella)!

Biscoff Rice Krispies Treats Squares drizzled with melted cookie butter.
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Super simple no bake dessert that anyone can make.

Easily customize this recipe with your favorite breakfast cereal. Marshmallows and cookie butter pair well with Kix, Cherrios, and Chex.

What’s not to love about a rice krispies treat?

It’s a quick and easy treat to whip up without much prep involved!

Best of all, it’s great to make with kids!

This version is super special. It’s the rice krispies you know and love…but with the additional of sweet cookie butter spread and little chunks of Biscoff cookies.

four pieces of biscoff rice krispie treats stacked tall.

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What is Biscoff?

Biscoff is the name of the popular speculoos biscuit (cookie) by Lotus Bakeries. Also known as speculaas, it is a thin and crispy Belgian cookies made with various spices.

Where to get Biscoff?

Biscoff is easy to find nationwide. You’re guaranteed to find it at Target, Walmart, and World Market.

Lotus Biscoff is the most popular, widely available brand. Most supermarkets will carry this brand. Find Biscoff in the cookie aisle of the supermarket. It is located alongside graham crackers, Oreos, and vanilla wafers.

Biscoff is the crunchy cookie. Biscoff spread (also known as cookie butter) is basically Biscoff cookie in paste form.

This “cookie butter” is made by crushing and processing speculoos/speculaas cookies until it forms a smooth, creamy spread.

Biscoff spread is stocked in the same aisle as peanut butter, nut butters, and Nutella.

Lotus brand is the most widely available. However, you are sure to find other versions. They may be labeled as speculoos cookie butter, speculoos biscuit spread, or simply “cookie butter.”

Trader Joe’s has made the product quite popular after introducing their Speculoos Cookie Butter several years ago. It gained the most traction when they sold speculoos cookie butter cheesecake bites!

Cereal Marshmallow Treats Ingredients

biscoff rice cereal marshmallow treats ingredients.

Only a handful of ingredients are needed to make quick and easy treats:

  • Cereal
  • Butter (salted or unsalted both work!)
  • Marshmallow
  • Biscoff cookies
  • Biscoff spread

The recipe calls for crispy rice cereal, but you may sub in your cereal of choice! More on that below.

Store-bought mini marshmallows work best. This isn’t the time to use homemade marshmallows. Rice krispie treats benefit from the stabilizers in store-bought marshmallows.

I recommend using the mini marshmallow variety simply because it melts faster and more evenly compared to the the larger marshmallow sizes.

Use “fresh” marshmallows. Meaning, one that isn’t nearing it’s best by date or expiration date. Soft, moist marshmallows will melt creamier than stale, dried up ones.

Cereal Options:

Cereal marshmallow treats are traditionally made with crispy rice cereal, specifically Rice Krispies.

However, you get creative and use whatever crunchy cereal you have!

Make these treats extra sweet by using Cinnamon Toast Crunch or Frosted Flakes. Or, choose Kix or Cherrios to let the flavors of the cookie butter (Biscoff) shine.

melted marshmallow, butter, and biscoff spread in a saucepot.

No Bake Dessert Bars

This is truly a no-bake dessert that anyone can make! While you don’t need an oven, a stove top is highly recommended.

Itโ€™s best to melt the butter and marshmallow stove top.

The constant stirring over a stove top ensure even melting. You will be able to prevent the butter or marshmallows from burning or scorching.

However, you may opt to heat them in the microwave, as well. This method is a little bit trickier because you cannot stir the ingredients as often.

Prep and Assembly Tips

  • Use an 8-inch or 9-inch square baking pan to make thick rice krispie bars.
  • Alternatively, use a large baking pan (such as 9×13-inch) to make thinner bars.
  • Line your choice of pan with parchment paper. Allow excess paper to hang over the sides of the pan. This greatly helps unmolding the sticky treats from the pan.
  • WORK QUICKLY! You small window of time to quickly fold the cereal and chopped cookies into the melted marshmallow-butter-cookie spread mixture. As the mixture cools, it will harden, making it much more difficult to coat the cereal with marshmallow.
  • Stack and press the same size baking pan over the cereal mixture to create an even, compact rice krispie treat.
close up of biscoff rice krispies treats before slicing.
biscoff rice krispies cereal treats cut into square portions.

Waiting for the cereal bars to set up is the most difficult part!

Once the marshmallow mixture has cooled, lift up the cereal mixture using the parchment paper overhang.

Slice the cereal mixture into your desired portions. I cut a 9-inch square pan into 16 squares.

top biscoff rice krispies treats with melted cookie butter.

Want to make these Biscoff rice krispies treats even better? Add a drizzle of melted cookie butter on top!

Place about a quarter cup (1/4 cup) Biscoff spread in a microwave safe bowl. Heat in 10-15 second intervals, stirring each time, until mixture easily drips off the spoon.

brown butter biscoff rice krispie treats topped with melted cookie butter drizzle.

Storage and Leftovers

The cookie butter drizzle will not harden. You will not be able to stack the frosted Biscoff rice crispy treats.

Store leftovers in an airtight container for up to 4 days.

Over time, it will harden and be more difficult to chew. At this point, it’s better to simply make another batch than risk breaking a tooth!

5 from 2 votes

Biscoff Rice Krispies Treats

Sweet, crunchy, chewy, and so satisfying. Theseย Biscoff rice krispiesย are an elevated version of the classic rice krispie square!
Yield: 9-inch square pan
Servings: 16
Biscoff Rice Krispies Treats Squares drizzled with melted cookie butter.
Prep Time: 15 minutes
Cool Time: 30 minutes
Total Time: 45 minutes
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Ingredients

  • 6 Tablespoons butter*, (85 g)
  • 1 10 oz bag mini marshmallows
  • ยพ cup + 2 Tablespoons Biscoff spread, (210 g) also known as cookie butter spread
  • 5 cups crispy rice cereal, (150 g) such as Rice Krispies
  • 10 pieces Biscoff cookies, (80 g) roughly chopped

Optional Topping:

  • ยผ cup Biscoff spread, (60 g)

Instructions 

  • Line 8-inch or 9-inch square baking pan* with parchment paper. Allow excess paper to hang over the sides. The overhang will help with unmolding. Set aside.
  • In a large pot, melt butter over medium heat. Add marshmallows. Stir until marshmallows have melted. Reduce to low heat. Add Biscoff spread and stir until melted and thoroughly combined.
  • Remove from heat and immediately add in rice cereal and chopped Biscoff cookies. Fold to combine until cereal and cookies are completed coated in the marshmallow mixture.
  • Transfer cereal mixture to prepared baking pan. Press the cereal mixture into an even layer. Cool to room temperature, about 30 minutes.
  • Use parchment paper overhang to lift and unmold rice krispies treats from the pan. Place on a cutting board. Use a sharp knife to slice into desired serving sizes.
  • Optional Topping: Place Biscoff spread in a microwave safe bowl. Heat in 10-15 second intervals, stirring each time, until mixture easily drips off the spoon. Drizzle liquid over the cut rice krispies treats.

Notes

Work quickly when folding the cereal into the melted marshmallow mixture. It will become more difficult to stir the contents together as the marshmallow cools and hardens.ย 
Ingredients:
  • This recipe works with either salted or unsalted butter. When using unsalted butter, I like to add a pinch of salt to the melted butter.ย 
  • For more complex flavor, brown the butter before adding the marshmallows!ย 
  • Mini marshmallows melt faster and more evenly than the larger marshmallow sizes.
Storage and Leftovers:
  • The optional cookie butter drizzle will not harden or set. Keep this in mind if you plan to stack the treats.
  • Store leftovers in an airtight container for up to 4 days. Overtime, it will stale and harden.ย 

Nutrition

Calories: 220kcal, Carbohydrates: 29g, Protein: 2g, Fat: 11g, Saturated Fat: 4g, Polyunsaturated Fat: 0.2g, Monounsaturated Fat: 1g, Trans Fat: 0.2g, Cholesterol: 11mg, Sodium: 50mg, Potassium: 9mg, Fiber: 0.1g, Sugar: 16g, Vitamin A: 131IU, Calcium: 2mg, Iron: 0.2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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biscoff rice krispies treats cut into squares.

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3 Comments

  1. Marji says:

    5 stars
    These treats are a big hit. I’ve made them several times because I can’t mess them up. I’m invariably asked for the recipe/link whenever I share them at group parties/functions. 10/10 recommend!

  2. K. G. says:

    Could you spread into a 9×13 pan in order to make thinner squares?

    1. Maryanne Cabrera says:

      Yes, in the “prep and assembly tips” section: Use an 8-inch or 9-inch square baking pan to make thick rice krispie bars. Alternatively, use a large baking pan (such as 9ร—13-inch) to make thinner bars.