Introduction

Discover the perfect blend of nostalgia and indulgence with these Ultimate Biscoff Rice Krispie Treats. Gooey marshmallows, crunchy Rice Krispies, and the warm, spiced flavors of Biscoff come together to create a no-bake dessert that’s both simple and irresistible. These treats are ideal for any occasion and sure to impress.

A clear white bowl with a base layer of light beige puffed rice cereal scattered and some small darker brown crumbs mixed in. In the center, a thick and smooth light brown cream or batter is being poured in swirling layers, forming a tall mound with shiny texture. On the right side inside the bowl, there is a neat stack of three square, pale beige cereal bars with visible puffed rice and darker spots of crumbs inside. The whole scene is set on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Ingredients

90g (6 tablespoons) unsalted butter
280g (10-ounce) bag of mini marshmallows, plus 1 cup (about 50g) reserved
200g (roughly ¾ cup) smooth Biscoff spread
180g (approximately 6 cups) Rice Krispies cereal
125g (around 16) Lotus Biscoff biscuits, crushed
1 teaspoon vanilla extract
A pinch of sea salt

Instructions

Step 1: Prepare a 9×9 inch (23×23 cm) square baking tin by lining it with baking parchment, leaving an overhang on two opposite sides to lift the treats later. Lightly grease the parchment and exposed tin areas with butter or cooking spray.
Step 2: In a large, heavy-based saucepan over low heat, gently melt the butter without letting it brown.
Step 3: Add the 280g bag of mini marshmallows and the Biscoff spread to the melted butter. Stir constantly with a silicone spatula until the mixture is smooth and fully combined, keeping the heat low to prevent burning.
Step 4: Remove the saucepan from heat and stir in the vanilla extract and a pinch of sea salt to enhance the flavor.
Step 5: Quickly fold in the Rice Krispies cereal and crushed Biscoff biscuits until evenly coated. Work swiftly as the mixture will begin to firm up.
Step 6: Gently fold in the reserved cup of mini marshmallows with just one or two stirs to create soft pockets in the final treats.
Step 7: Transfer the mixture into the prepared tin and press down gently with a greased spatula or parchment paper to form an even layer without compressing it too firmly.
Step 8: Let the treats set at room temperature for at least one hour before slicing to allow them to firm up for clean cuts.

Tips & Variations

Use fresh mini marshmallows for the best gooey texture; old marshmallows can dry out the treats.
Avoid overheating the marshmallow mixture to prevent your treats from becoming hard or brittle.
Try drizzling melted white chocolate over cooled treats for added sweetness and visual appeal.
For extra Biscoff flavor, warm some Biscoff spread and drizzle on top with crushed biscuit sprinkles.
Add a chocolate layer by spreading melted milk or dark chocolate in the tin before pressing the mixture on top.
Mix in mini chocolate chips or butterscotch pieces to introduce extra flavor and texture.

Storage

Store your sliced treats in an airtight container at room temperature for up to three days. To prevent sticking, place sheets of parchment between layers. Avoid refrigerating as this can dry them out and make them hard. For longer storage, freeze individual wrapped portions in cling film inside a freezer-safe bag for up to six weeks; thaw at room temperature 15–20 minutes before serving.

How to Serve

A clear glass bowl holds a mix of ingredients on a white marbled surface. In the bowl, at the base, there is a layer of small white puffed grains mixed with brown crumbly bits scattered evenly around. On top of this base sits a glossy, smooth, thick light brown cream being poured in slow folds, creating soft swirls. To the right side of the bowl, there is a small stack of three square rice crispy treats with a light beige color and visible brown crumbs embedded inside. The whole scene looks clean and bright with soft natural light. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use crunchy Biscoff spread?

Yes, the crunchy Biscoff spread adds small biscuit pieces that contribute extra texture and crunch, making it a delightful alternative to the smooth version.

Are these Biscoff Rice Krispie Treats gluten-free?

The recipe as written is not gluten-free because Lotus Biscoff biscuits and spread contain wheat, and most Rice Krispies cereals contain malt extract from barley. To make a gluten-free version, use certified gluten-free crisped rice cereal and substitute gluten-free speculoos biscuits and spread.