Biscoff Caramel Slice Recipe

The Ultimate Cookie Butter Dessert Bar! 🍯🍪
This decadent Biscoff Caramel Slice layers a buttery cookie crust with velvety caramel filling and a smooth white chocolate topping for an irresistible treat that’s perfect for gifting or indulging!
Why You’ll Love This Recipe
✔ Triple-layer perfection – Crunchy, creamy, and melt-in-your-mouth textures.
✔ Biscoff in every bite – Cookie butter magic in the crust, filling, AND topping!
✔ Make-ahead friendly – Stays fresh for days (if they last that long).
✔ Impressive yet easy – No baking required.
Ingredients
For the Base
- 2 cups (200g) Biscoff cookie crumbs (about 24 cookies)
- ½ cup (115g) unsalted butter, melted
- 2 tbsp brown sugar (optional, for depth)
For the Biscoff Caramel Filling
- ½ cup (115g) unsalted butter
- ½ cup (100g) brown sugar, packed
- ¼ cup (60ml) golden syrup (or light corn syrup)
- 1 (14 oz/400g) can sweetened condensed milk
- ¼ cup (65g) Biscoff cookie butter (smooth or crunchy)
- ½ tsp vanilla extract
- Pinch of salt
For the Topping
- 200g (1¼ cups) white chocolate, chopped
- 2 tbsp (30g) Biscoff cookie butter
- Optional garnish: Crushed Biscoff cookies or extra cookie butter drizzle
Step-by-Step Instructions
1. Make the Biscoff Base
- Line an 8×8-inch (20x20cm) pan with parchment paper (leave overhang for easy removal).
- Mix cookie crumbs, melted butter, and brown sugar (if using) until sandy.
- Press firmly into the pan. Chill 15–20 mins while you make the filling.
2. Prepare the Caramel Filling
- In a saucepan over medium heat, melt butter, brown sugar, syrup, and condensed milk.
- Stir constantly for 8–10 mins until thickened (should coat the back of a spoon).
- Off heat, stir in Biscoff spread, vanilla, and salt until smooth.
- Pour over the chilled base. Refrigerate 30–40 mins until set.
3. Add the Topping
- Melt white chocolate and Biscoff spread in 20-second bursts in the microwave, stirring until smooth.
- Pour over the caramel layer, spreading evenly.
- Optional: Sprinkle with crushed cookies or drizzle with extra Biscoff.
4. Chill & Slice
- Refrigerate 1+ hour (or freeze 20 mins for faster setting).
- Slice with a warm knife (run under hot water, then dry) for clean cuts.
Serving & Storage
🍽 Pair with: Coffee, milk, or a scoop of vanilla ice cream!
📦 Storage:
- Fridge: Up to 5 days in an airtight container.
- Freezer: Layer between parchment paper for 2 months (thaw 10 mins before serving).
Pro Tips
🔹 For texture: Use crunchy Biscoff spread in the caramel.
🔹 Salt balance: Flaky sea salt on top enhances sweetness.
🔹 Substitutions: Swap white chocolate for dark or milk chocolate.