Cookies & Bars

The Ultimate Chewy Biscoff Millionaire Bars Recipe: 5-Step Perfection

This chewy biscoff millionaire bars recipe is more than just a sweet treat; it’s a memory baked into every layer, a little piece of my heart from the Let Them Cook kitchen to yours. They have the most divine caramel centre and a crunchy Biscoff base that reminds me of biscuits my mum and I used to share. You’re going to absolutely adore them.

In this post, you’ll learn exactly how to create my heartwarming chewy biscoff millionaire bars recipe from scratch. We’ll walk through layering the buttery biscuit base, creating the perfectly gooey caramel, and finishing with a smooth chocolate topping. While my recipe is a no-fuss treat perfect for sharing, it helps to understand the fundamentals; you can Discover a reliable and delicious classic millionaire’s shortbread recipe from BBC Good Food to learn the basics.

With my Biscoff-specific tips, you’ll master this easy millionaire shortbread with Biscoff and learn my secret for getting that flawless finish every single time. For an even deeper dive into the classic, you can also Master the art of perfectly chewy millionaire’s shortbread with Serious Eats’ expert guide, and for more Biscoff inspiration, Indulge in Jane’s Patisserie’s irresistible Biscoff Millionaires Traybake recipe or Discover A Baker’s Bookshelf’s delightful take on Biscoff Millionaires Shortbread.

Top 3 Secrets for the Perfect Chewy Biscoff Millionaire Bars Recipe

  • Use room temperature butter for the smoothest biscuit base.
  • Patience is key; let each layer set completely before adding the next.
  • A pinch of sea salt elevates the caramel and chocolate flavours.

A Spoonful of Memory: Thoughts on Baking with Love

Every time I melt chocolate, I remember my mum’s warm smile. It’s my secret ingredient.

Baking isn’t just about following steps; it’s about pouring your heart into what you create.

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chewy biscoff millionaire bars recipe

If you’d like a similar recipe…

<!– wp:wpzoom-recipe-card/block-recipe-card {"recipeTitle":"The Ultimate Chewy Biscoff Millionaire Bars Recipe: 5-Step Perfection","summary":"A triple-layered slice of heaven! A crunchy Biscoff base, a gooey caramel middle, and a rich chocolate top make these bars utterly irresistible.","course":["Dessert","Snack","Treat"],"cuisine":["British","European"],"keywords":["Biscoff millionaire bars","millionaire's shortbread","no bake traybake","caramel slice","Biscoff recipe"],"ingredients":[{"name":"250g Biscoff biscuits, crushed"},{"name":"100g unsalted butter, melted"},{"name":"100g unsalted butter"},{"name":"100g light brown soft sugar"},{"name":"1 x 397g can condensed milk"},{"name":"2 tbsp golden syrup"},{"name":"1 tsp vanilla extract"},{"name":"100g Biscoff spread"},{"name":"200g milk chocolate, chopped"},{"name":"50g dark chocolate, chopped"},{"name":"A few Biscoff biscuits, crushed for decoration"}],"steps":[{"text":"Line your 9×9 inch tin with baking parchment, leaving some overhang to help lift it out later."},{"text":"For the base, mix the crushed Biscoff biscuits with the melted butter. Press firmly into the bottom of the prepared tin and chill in the fridge for 30 minutes."},{"text":"For the caramel, melt the butter and sugar in a saucepan over low heat. Add the condensed milk and golden syrup, and bring to a simmer, stirring constantly for about 5-7 minutes until it thickens."},{"text":"Remove from the heat and stir in the vanilla extract and Biscoff spread until smooth. Pour over the chilled biscuit base and return to the fridge to set for at least an hour, or until firm."},{"text":"Once the caramel is set, melt the milk and dark chocolate together in a bowl over a pan of simmering water or in the microwave in short bursts."},{"text":"Pour the melted chocolate over the caramel layer, spreading it evenly. Sprinkle with the extra crushed Biscoff biscuits."},{"text":"Let it set in the fridge for another 30 minutes, or until the chocolate is firm. Once set, lift out of the tin and cut into 16 squares. Let them come to room temperature for 10 minutes before serving for the best texture."}],"details":[{"jsonKey":"prepTime","value":"25","unit":"minutes"},{"jsonKey":"cookTime","value":"10","unit":"minutes"},{"jsonKey":"restingTime","value":"2","unit":"hours"},{"jsonKey":"calories","value":"350","unit":"kcal per bar"}],"notes":"

For a clean cut, use a sharp knife that has been warmed in hot water and wiped dry between slices.

These bars will keep in an airtight container in the fridge for up to a week.

Feel free to use white chocolate for the topping for a different flavour profile.

“} –>
 

Chewy Biscoff Millionaire Bars

A heartwarming recipe for chewy Biscoff millionaire bars with a divine caramel center and a crunchy Biscoff base, perfect for sharing.
Prep Time 30 minutes
Cook Time 20 minutes
Total Time 50 minutes
Servings: 16 bars
Course: Dessert, Snack
Cuisine: American, Baking
Calories: 250

Ingredients
  

For the Base
  • 200 g Biscoff biscuits Crushed
  • 100 g butter Room temperature
For the Caramel
  • 200 g sweetened condensed milk For a gooey texture
  • 100 g brown sugar Adds depth of flavor
  • 50 g butter
  • 1 pinch sea salt To enhance flavors
For the Topping
  • 200 g dark chocolate Melted

Method
 

Preparation
  1. Begin by crushing the Biscoff biscuits into fine crumbs.
  2. Mix the crushed biscuits with room temperature butter until well combined.
  3. Press the mixture into the base of a lined baking dish to form the biscuit base.
Making Caramel
  1. In a saucepan over medium heat, combine sweetened condensed milk, brown sugar, butter, and a pinch of sea salt.
  2. Stir continuously until the mixture thickens and turns a golden color.
  3. Pour the caramel over the biscuit base and allow to cool completely.
Finishing Touch
  1. Melt the dark chocolate in a microwave or double boiler.
  2. Pour the melted chocolate over the set caramel layer.
  3. Allow to set fully before cutting into bars.

Notes

For the best result, let each layer set completely before adding the next. A pinch of sea salt enhances the flavor of the caramel and chocolate.

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