The Ultimate Biscoff Rice Krispie Treats Recipe
Introduction
Discover how to make the ultimate Biscoff Rice Krispie Treats, a delightful twist on a classic favorite. These treats combine the irresistible flavor of Biscoff spread and biscuits with the nostalgic crispiness of Rice Krispies for a gooey, crunchy snack that’s hard to put down.

Ingredients
- 90g (6 tablespoons) unsalted butter
- 280g (10-ounce) bag mini marshmallows, plus 1 cup (about 50g) extra
- 200g (about ¾ cup) smooth Biscoff spread
- 180g (approximately 6 cups) Rice Krispies cereal
- 125g (around 16) Lotus Biscoff biscuits, crushed
- 1 teaspoon good-quality 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. Leave a slight overhang on two opposite sides for easy lifting. Lightly grease the parchment and any exposed tin areas with butter or cooking spray.
- Step 2: In a large, heavy-based saucepan over low heat, melt the butter gently. Keep the heat low to avoid browning the butter.
- Step 3: Add the 280g bag of mini marshmallows and the smooth 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. Stir in the vanilla extract and a pinch of sea salt to enhance the flavor.
- Step 5: Add the Rice Krispies cereal and crushed Biscoff biscuits to the marshmallow mixture. Gently mix with a greased spatula until the cereal and crumbs are evenly coated.
- Step 6: Fold in the reserved 1 cup of mini marshmallows with just one or two stirs to create soft pockets in the treats.
- Step 7: Transfer the mixture into the prepared baking tin. Press it down gently with a greased spatula or parchment to form an even layer without compressing too firmly.
- Step 8: Allow the treats to set at room temperature for at least one hour before slicing and serving.
Tips & Variations
- Use mini marshmallows for faster, more even melting and to create soft pockets in the final treat.
- Do not overheat the marshmallow mixture; keep the heat low and remove from heat once marshmallows just melt to avoid hard, brittle treats.
- Press the mixture gently into the tin to maintain a light, chewy texture rather than dense bars.
- Substitute salted butter if unsalted isn’t available, but reduce added salt accordingly.
- Add chopped nuts or drizzle melted chocolate on top for extra texture and flavor.
Storage
Store the Biscoff Rice Krispie Treats in an airtight container at room temperature for up to 3 days. For longer storage, keep them in the refrigerator for up to a week, but bring to room temperature before serving for the best texture. They reheat well briefly in the microwave if you prefer a warmer treat.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular marshmallows instead of mini ones?
Yes, but mini marshmallows melt more quickly and evenly, which helps achieve the perfect smooth base. If using regular marshmallows, chop them into smaller pieces for better results.
What can I substitute for Rice Krispies cereal?
You can use other puffed rice cereals if Rice Krispies aren’t available. Just ensure they have a similar light, crispy texture to maintain the treat’s crunch.
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The Ultimate Biscoff Rice Krispie Treats Recipe
- Total Time: 1 hour 20 minutes
- Yield: 16 square treats (approximately 9x9 inch pan, cut into 16 pieces) 1x
Description
These Ultimate Biscoff Rice Krispie Treats combine the classic crispy, gooey marshmallow base with the rich caramelized flavor of Biscoff spread and crunchy Biscoff biscuits for an indulgent twist on a childhood favorite. Soft mini marshmallows, smooth Biscoff spread, and crushed Lotus Biscoff biscuits are folded into Rice Krispies cereal for a uniquely textured and irresistibly delicious treat that’s easy to make and perfect for any occasion.
Ingredients
Base Ingredients
- 90g (6 tablespoons) unsalted butter
- 280g (10-ounce) bag mini marshmallows
- 200g (¾ cup) smooth Biscoff spread
- 180g (approximately 6 cups) Rice Krispies cereal
- 125g (around 16) Lotus Biscoff biscuits, crushed
- 1 teaspoon good-quality vanilla extract
- Pinch of sea salt
- Additional 50g (about 1 cup) mini marshmallows reserved for folding in
Instructions
- Prepare Your Tin: Line a 9×9 inch (23×23 cm) square baking tin with baking parchment, allowing a slight overhang on two opposite sides for easy lifting. Lightly grease the parchment and any exposed tin areas with butter or neutral cooking spray to prevent sticking.
- Melt the Base: In a large, heavy-based saucepan or Dutch oven, gently melt 90g of unsalted butter over low heat. Keep the heat low to prevent browning or burning.
- Add Marshmallows and Biscoff: Once the butter has melted completely, add the entire 280g bag of mini marshmallows and 200g of smooth Biscoff spread. Stir continuously with a silicone spatula over low heat until the mixture is fully melted, smooth, and combined without scorching.
- Incorporate Flavour Boosters: Remove the saucepan from the heat. Quickly stir in 1 teaspoon vanilla extract and a pinch of sea salt to enhance and balance the sweetness and flavor depth.
- Combine with Crispies and Biscuits: Add the 180g Rice Krispies cereal and the crushed 125g Biscoff biscuits into the marshmallow mixture. Gently mix everything together with a greased spatula until the cereal and biscuit pieces are evenly coated. Work swiftly as the mixture begins to firm up.
- Add More Marshmallows (The Secret Step!): Fold in the reserved 50g (about 1 cup) of mini marshmallows with one or two gentle stirs. These won’t fully melt and will create pockets of gooey softness in the finished treats.
- Press into the Tin: Carefully transfer the mixture into your prepared tin. Using a greased spatula or another piece of parchment, gently press the mixture into an even layer. Avoid pressing too firmly to keep the treats light and chewy.
- Let It Set: Allow the treats to set at room temperature for at least one hour before slicing. This resting period ensures firm, clean cuts and the best texture.
Notes
- Use mini marshmallows for quicker, more uniform melting compared to large marshmallows.
- Keep the heat low throughout to avoid sugar crystallization, which leads to hard treats.
- Press the mixture lightly to avoid dense, hard textures; gentle pressing keeps the treats chewy.
- The reserved marshmallows add delightful soft pockets inside the treats.
- Line your baking tin with parchment with an overhang to easily lift out the treats once set.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Category: Dessert
- Method: Stovetop
- Cuisine: American
Keywords: Biscoff Rice Krispie Treats, Lotus Biscoff treats, marshmallow treats, no-bake dessert, chewy candy bars, crispy cereal bars

