Cupcakes with Biscoff® Spread

Light and fluffy little caramelised biscuit cupcakes, with a secret Biscoff® spread surprise hiding inside, a crown of soft Biscoff® spread buttercream on top, and a sprinkle of crushed Biscoff® biscuits to decorate.

iced Biscoff® spread cakes on a cooling rack

I like these cupcakes to have plenty of caramelised biscuit flavour throughout, using Biscoff® spread and biscuits. I discovered that adding Biscoff® spread directly to cake batter results in high sugar content and therefore a thick crust on top when baked. Adding less Biscoff® spread just diluted the flavour to negligible.

I also found out, through much experimentation, that adding crushed Biscoff® biscuits does result in a deeper caramelised biscuit flavour in the cupcakes, but, on the other hand, also dries the cake batter out when baked, resulting in a crumbly and brittle cake.

Biscoff® spread cakes on cooling rack

Loads of caramelised biscuit flavour from Biscoff® spread and biscuits......

  1. We make the cupcakes with light brown muscovado sugar to give them a hint of caramel.
  2. Then we cut out a little hole in the middle of each cupcake, soften some Biscoff® spread, add it into the cavity, and then pop the piece of cut-out cake back on.
  3. We use more Biscoff® spread in our butter icing
  4. Finally, we crush Biscoff® biscuits to sprinkle over our frosting.
single Biscoff® spread cupcake

If you make these little caramelised biscuit cupcakes, please do leave a star rating or a comment below. I'd love to know how you got on with them.

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Ingredients and Substitutions

Biscoff® spread: we add this to the centre of these caramelised biscuit cupcakes. We also use it to flavour the buttercream frosting.

Biscoff® biscuits: we crush Biscoff® biscuits and then sprinkle them over our Biscoff® spread buttercream for decoration, a bit of crunch and extra caramelised biscuit flavour.

Light muscovado sugar: we use brown sugar for a caramel hint and because it gives us moist cakes. Feel free to use soft brown sugar, caster (superfine) sugar or golden caster (superfine) sugar instead, they work just as well.

Self-raising flour: is best used when making cakes because it has salt and baking powder already incorporated. It is fine to use plain (all-purpose) flour instead. Details of how much extra baking powder to add are noted below.

Eggs: must be at room temperature so that they bind the cake batter together.

Milk: again needs to be at room temperature. Milk makes our cakes lovely and soft.

Baking powder: to ensure our cupcakes rise.

Unsalted butter: for our whirl of Biscoff® frosting on each cake. Must be soft to beat up smoothly for smooth buttercream.

Icing sugar: for our Biscoff® spread buttercream.

Instructions

See end of post RECIPE CARD for precise quantities and instructions.

Caramelised Biscuit Cupcakes

Beat together your softened butter and brown sugar. Stop beating after a couple of minutes when the mixture is soft and easily spreadable. This ensures plenty of air has been added and helps our cupcakes rise.

Using a fine-mesh sieve, sift together your flour and baking powder.

portrait sugar added to butter

Lightly beat your eggs.

Add a third of your egg mixture and a large dessertspoonful of your flour mixture to your beaten butter and sugar and beat on a low setting until just combined. Repeat until all of your egg has been mixed in.

Beat in the rest of your flour mixture.

Then beat in your milk, this will loosen the batter up.

Add equal amounts of your cake mixture to your muffin cases and then bake for 18-20 minutes until golden and firm on top.

Remove to your cooling rack and leave to cool completely.

Cut out a hole of about 2 centimetres deep and wide into the top of each cupcake.

portrait size cupcakes baked and cooling

Add Biscoff® spread to each cavity and then pop the cut-out piece of cake back on to hide it.

If your Biscoff® spread is too stiff, pop it into a microwavable dish and microwave for 10 seconds to soften a little.

Biscoff® Spread Buttercream

I am not a huge fan of a mountain of buttercream frosting on my cupcakes.

Controversial, I know....but I feel too much buttercream can be overpowering and detract from the cake itself.

If you prefer lots of icing, though, please double the quantities listed in the buttercream ingredients below.

Beat your butter for a few seconds to ensure fully soft.

Add your Biscoff® spread and beat until fully combined.

Gradually beat in your icing sugar.

Add a tablespoon of room temperature milk to your buttercream and beat. If still a little too stiff to pipe, add another tablespoonful.

Fill your piping bag with buttercream and pipe swirls onto each cupcake. I am the first to admit that my icing technique is still a work-in-progress; I am no expert by any means, so to see how the experts do it, try watching this video.

Crush your Biscoff® biscuits either in a food processor or by placing them in a food bag and bashing them with a rolling pin.

Sprinkle your crushed biscuits over your icing.

Top Tips

  • It is very important to beat your butter and sugar together for 2-3 minutes to ensure air is incorporated; it needs to be very paste-like and spreadable. You should notice pockets of air when you stir it.
  • To ensure each muffin case contains the same amount of cupcake batter, place the muffin case onto your weighing scales and weigh in equal amounts. Mine came to about 50 grams each.
  • To cut an even hole in the centre of each cupcake, try using a Cupcake Corer.
  • When making your Biscoff® spread buttercream, add your icing sugar gradually to avoid clouds billowing out from your mixing bowl.
  • You can make your buttercream in advance and pop it in the fridge. Remove it from your fridge and allow it to soften up by coming up to room temperature before using.
  • In order to fill your piping bag more easily, prop it up inside a large glass and fold the bag edges over the sides. Then fill the piping bag with your Biscoff® icing, pull the edges up, and tie it off with string where the buttercream has been filled to. This ensures that your buttercream icing doesn't leak out when you pipe.
inside of a cake

Variations

Cinnamon works very well with Biscoff® spread and biscuits; add half a teaspoon to your cupcake batter for an extra twist.

Storage

Buttercream-frosted cupcakes will keep at room temperature for up to 2 days.

If kept refrigerated, they will keep for 4-5 days.

You can freeze these cupcakes fully iced. They should be consumed within 2 months.

single cupcake

Did you try this recipe?
Please leave a ⭐⭐⭐⭐⭐ rating in the Recipe Card below.

FAQ

Is cake flour the same as self-raising flour?

Not quite. Cake flour is finely milled and doesn't contain a lot of protein, whereas self-raising flour has more protein plus salt and baking powder to ensure baked goods rise. If you need to use plain (all-purpose) flour instead of self-raising flour, simply add 2 teaspoons of baking powder for every 150 grams (1 US cup) of flour.

My brown sugar has become hard; how do I soften it up?

Moisture can evaporate from brown sugar, leaving it hard and difficult to bake with. It is still perfectly edible, however. To soften your hardened brown sugar, simply place it in a microwaveable dish and cover with a damp piece of kitchen towel. Then microwave in short 10-second bursts and keep checking the consistency until it is soft again.

cupcakes on a board slanted

Linked Recipes

I ADORE baking with Biscoff® spread and biscuits, hence why I have made quite a few treats with them so far!

Try my Apple Crumble with Biscoff® spread if you want a truly delicious pudding!

📖 Recipe

cupcakes featured image

Caramelised Biscuit Cupcakes with Biscoff® Spread

Light and fluffy caramelised biscuit cupcakes, with a secret Biscoff® spread surprise hiding inside, a crown of soft Biscoff® spread buttercream on top and a sprinkle of crushed Biscoff® biscuits to decorate.
5 from 3 votes
Rate this Recipe
Course: Snack
Prep Time: 20 minutes
Cook Time: 20 minutes
Total Time: 40 minutes
Servings: 12 Cupcakes
Calories:
Alter quantities (metric only) 12 Cupcakes

Ingredients you'll need...

Caramelised Biscuit Cupcakes

  • 165 g Unsalted butter softened (US = ⅔ Cup)
  • 165 g Self raising flour or plain/all-purpose flour with an extra 2 teaspoons of baking powder (US = 1 Cup + 3 tablespoons)
  • 165 g Light muscovado sugar or soft brown sugar, caster/superfine sugar or golden caster/superfine sugar (US = 13 tablespoons)
  • 1½ teaspoon Baking powder
  • 3 Large eggs lightly beaten (US = extra large)
  • 100 g Biscoff® spread (US = 5 tablespoons)
  • 1 tablespoon Milk at room temperature

Biscoff® Spread Buttercream (if you like a lot of buttercream please double these quantities)

  • 75g g Unsalted butter softened (US = ⅓ Cup)
  • 100 g Icing (confectioners) sugar sifted (US = 1 Cup)
  • 100 g Biscoff® spread (US - 5 tablespoons)
  • 1 tablespoon Milk
  • 3 Biscoff® biscuits

Here's what we do...

Caramelised Biscuit Cupcakes

  • Heat your oven to 180°C/160°C/355°F/Gas Mark 4.
  • Place your muffin cases in your muffin tin.
  • Beat together your softened butter and brown sugar until soft, fluffy and paler in colour. Start on a low setting and increase to medium-high as the mixture softens. It will take 2-3 minutes to reach the correct consistency. (See FAQs above if your brown sugar is hard).
  • Sift together your flour and baking powder.
  • Add a third of your beaten eggs and a heaped tablespoon of your sifted flour mixture to your butter mixture and beat on a low setting. Stop as soon as soon as you can no longer see any egg.
  • Repeat twice more until all of your egg mixture as been mixed in.
  • Add the rest of your flour mixture and beat until just incorporated. Scrape down your bowl using your spatula to ensure all of the mixture from the sides and bottom is mixed in.
  • Add your milk and then beat again for about 10 seconds
  • Using one teaspoon to scoop up some batter and one to scrape it off into the muffin case, add equal amounts of batter to each muffin case (see Notes below).
  • Place into your oven and bake for 18-20 minutes. When ready your cupcakes will be golden on top and spring back up when you gently press them.
  • Remove to your cooling rack and leave to cool completely.
  • Once cool use your cake corer or a knife to cut out little holes in the top of each cake, about 2 cm deep. Put the removed cake aside.
  • Fill these holes with your Biscoff® spread. If your Biscoff® spread is a little stiff pop it into a microwavable bowl and heat for 10 seconds.
  • Replace the removed cake pieces to hide the Biscoff®spread inside.

Biscoff® Spread Buttercream

  • Place your softened butter into your mixing bowl and beat for about 10 seconds to fully soften.
  • Add your Biscoff® spread and beat on a low setting for another 10 seconds. Then scrape your bowl down with your spatula to ensure all of the butter at the base is picked up. Beat again for 10-15 seconds until totally mixed together and no lumps of butter remain.
  • Keeping your mixer on a low setting gradually add your sifted icing (confectioner's) sugar. See Notes below for tips.
  • Beat until all of your icing sugar has been mixed in. Add your milk to ensure your buttercream is soft enough to pipe.
  • Cut the tip off your piping bag and place your star piping nozzle into it, just the end of the piping tip should stick out of the end of the piping bag and the bag should fit snuggly around it so that icing cannot escape down the sides of the tip.
  • Fill your piping bag with buttercream. See Notes below for tips on how to do this. Tie the top with kitchen string to ensure that buttercream does not leak out when piping.
  • Pipe a swirl of buttercream onto each cake. See video in main blog post for instructions showing how to do this.
  • Crush your Biscoff® biscuits either in a food processor or by placing them in a food bag and bashing them with a rolling pin.
  • Sprinkle your crushed biscuits over your icing.
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Supporting Notes

  • It is very important to beat your butter and sugar together for 2-3 minutes to ensure air is incorporated, it needs to be very paste like and spreadable. You should notice pockets of air when you stir it.
  • To ensure each muffin case contains the same amount of cupcake batter, place the muffin case onto your weighing scales and weigh in equal amounts. For my cupcakes, this was about 50 grams per cupcake.
  • To cut an even hole in the centre of each cupcake, try using a Cupcake Corer.
  • When making your Biscoff® spread buttercream, add your icing sugar gradually to avoid clouds billowing out from your mixing bowl.
  • You can make your buttercream in advance and pop it in the fridge. Remove it from your fridge and allow it to soften by bringing it up to room temperature before using.
  • In order to fill your piping bag more easily, prop it up inside a large glass and fold the bag edges over the sides. Then fill the piping bag with your Biscoff® spread buttercream, pull the edges up, and tie it off with string where the buttercream has been filled to. This ensures that your buttercream icing doesn't leak out when you pipe.

Make Your own Notes on this Recipe here...

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