Cookie Butter Rice Krispies Treats
These Cookie Butter Rice Krispies Treats are already a dream—soft, gooey, and packed with warm spiced Biscoff flavor—but take them to the next level by turning them into the ultimate ice cream sandwich. Crisp yet chewy rice cereal treats meet luscious vanilla bean ice cream, creating a dessert that’s equal parts nostalgic and indulgent. Whether you enjoy them on their own or stacked with a creamy, frozen center, these no-bake delights are an effortless way to satisfy your sweet tooth. Get ready for a treat that melts in your mouth—literally!
Servings: 8
Ingredients
- 6 ½ cups mini marshmallows divided
- 6 cups rice cereal
- 1 cup Lotus Biscoff cookies crushed, plus more for topping
- ¼ cup Biscoff cookie butter melted
- ¼ cup marshmallow fluff melted
- 8 tbsp unsalted butter
- 1 tsp vanilla extract
Optional
- Vanilla bean ice cream for serving
Instructions
- In a large saucepan over medium heat, melt the butter, stirring occasionally to prevent browning.
- Once fully melted, add 5 cups of mini marshmallows. Stir continuously with a silicone spatula until the marshmallows are completely melted and smooth.
- Add the vanilla extract and mix until incorporated. Immediately remove the pan from heat.
- Gently fold in the rice cereal, remaining 1 ½ cups of mini marshmallows, and 1 cup of crushed Biscoff cookies. Stir until the cereal is evenly coated in the marshmallow mixture, working quickly before it begins to set.
- Transfer the mixture to a parchment-lined baking dish. Using a spatula or greased hands, gently press it down into an even layer without compacting it too much—this keeps the treats soft and gooey.
- In separate microwave-safe bowls, heat the cookie butter and marshmallow fluff in 5-second intervals, stirring between each until fully melted and smooth.
- Drizzle the melted cookie butter and marshmallow fluff over the treats, then sprinkle with additional crushed Biscoff cookies for extra crunch and flavor.
- Let the treats cool at room temperature for at least 30 minutes before slicing into squares.
- Take it to the next level by sandwiching a scoop of vanilla bean ice cream between two pieces of the Rice Krispies treats for the ultimate frozen dessert. Press gently and enjoy immediately, or freeze for a firmer bite. Allow to thaw a few minutes before diving in!
- Cut, serve, and enjoy!
Notes
If you're making ice cream sandwiches out of these, I recommend eating them right after you assemble. If you want to freeze them, I would freeze for 10-15 minutes max.