A cup with purple floral design contains brown crumbly dessert with a piece of chocolate on top; a teapot is in the background.

Biscoff Mug Cake

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If you’re a fan of the rich, caramelized flavor of Biscoff cookies, this Biscoff Mug Cake is about to become your new favorite dessert! Made with simple ingredients and ready in just a few minutes, this warm and gooey treat is perfect for satisfying sweet cravings in no time. With the deep, spiced flavor of Biscoff spread combined with a soft, rich cake texture, every bite is pure comfort.

A biscoff mug cake rests on a napkin, surrounded by crushed cookies, with two whole cookies nearby and a teapot in the background.

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What is Biscoff?

Biscoff is a brand of speculoos cookies and cookie butter spread made by the Belgian company Lotus Bakeries. Speculoos are spiced, caramelized biscuits that have a distinct flavor, similar to gingerbread but with a milder, buttery taste.

Biscoff spread (also called cookie butter) is made by grinding Biscoff cookies into a creamy, peanut butter-like consistency. It has a deep caramelized flavor with hints of cinnamon, nutmeg, and brown sugar.

Why You’ll Love This Recipe

  • Quick & Easy – No need to turn on the oven! This mug cake is ready in just 5 minutes from start to finish.
  • Minimal Ingredients – Uses pantry staples, plus delicious Biscoff spread.
  • Single Serving – Perfect for when you just want a small dessert without leftovers.
  • Customizable – Add your favorite mix-ins and toppings for extra indulgence!

Ingredients

This is an egg free mug cake. If you want to make this gluten-free, substitute the all purpose flour with a gluten-free flour or almond flour.

Labeled baking ingredients on a marble surface, perfect for crafting a Biscoff mug cake, including Biscoff spread, flour, milk, melted butter, brown sugar, vanilla extract, baking powder, and a Biscoff cookie.
  • All-Purpose Flour : Forms the structure of the cake, giving it a soft, cake-like texture.
  • Biscoff Spread : The star ingredient! Adds a rich, spiced caramelized flavor.
  • Milk : Helps create moisture for a soft and tender crumb.
  • Butter : Enhances richness and keeps the cake moist.
  • Brown Sugar : Sweetens the cake while adding a slight caramel flavor.
  • Baking Powder : Gives the mug cake a light and fluffy texture.
  • Vanilla Extract : Enhances the flavor and complements the Biscoff spread.

How to Make Biscoff Mug Cake

We found the batter very thick in consistency but it still cooks well. Feel free to add more liquid for a lighter sponge. We cooked ours for 60 seconds, so timing on microwave can vary. Cook it for 60 seconds, then intervals of 10 seconds until it is cooked.

Ingredients in bowls on a marble surface include peanut butter, melted butter, and other baking components. At the center is a mug containing a flour and sugar mix for a delicious biscoff mug cake, with a Lotus Biscoff cookie tantalizingly close by.

Mix the dry ingredients in a mug.

A mug containing a biscoff-flavored mixture of flour, brown paste, and a yellow liquid sits on a marble surface, with a biscuit nearby.

Add the wet ingredients and mix.

A biscoff mug cake fills a mug on the marble surface, perfectly matched with a single Biscoff cookie.

Microwave until firm.

A biscoff mug cake with a purple handle bursting with brown crumbled dessert sits on a white cloth next to two rectangular cookies.

Serve with a crushed Biscoff cookie.

Recipe Tips

  • Use a large mug to prevent overflowing while microwaving.
  • Don’t overcook – The cake will continue to firm up as it cools.
  • Mix well to ensure no dry pockets of flour in the batter.

Variations & Add-Ins

  • Extra Biscoff Drizzle: Microwave a spoonful of Biscoff spread and drizzle on top.
  • Crunchy Topping: Crushed Biscoff cookies or a sprinkle of cinnamon for extra texture.
  • Chocolate Chips: Stir in a few chocolate chips for a melty surprise.
  • Ice Cream Pairing: Serve warm with a scoop of vanilla ice cream for extra indulgence.
A spoon lifts a portion of rich brown biscoff mug cake over a patterned cup, with a teapot and biscuits adding charm in the background.

More Mug Cakes Recipes

If you enjoy a sweet mug cake, try these other easy recipes.

Nutella Mug Cake

Funfetti Cake Mix Mug Cake

Chocolate Raspberry Mug Cake

A cup with purple floral design contains brown crumbly dessert with a piece of chocolate on top; a teapot is in the background.

Biscoff Mug Cake

This quick and easy Biscoff mug cake is rich, fluffy, and packed with caramelized cookie butter flavor. Made in minutes, it’s the perfect single-serve treat!
Prep Time 3 minutes
Cook Time 2 minutes
Total Time 5 minutes
Course Dessert
Cuisine Egg Free
Servings 1 serving
Calories 457 kcal

Need Metric Measurements?

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Ingredients
 
 

  • 4 tablespoons all purpose flour
  • 2 tablespoons Biscoff spread
  • 2 tablespoons milk
  • 1 tablespoon melted butter
  • 1 tablespoon brown sugar
  • 1/4 teaspoon baking powder
  • 1/2 teaspoon vanilla extract

Instructions
 

  • In a microwave-safe mug, whisk together the flour, baking powder, and brown sugar to combine.
  • Add the melted butter, milk, vanilla extract, and Biscoff spread. Stir until smooth and well combined.
  • Microwave on high for 60–90 seconds, or until the cake has risen and is set in the center. (Timing may vary based on your microwave wattage.)
  • Let the mug cake cool for a minute before digging in!

Notes

Makes 1 serving

Nutrition

Serving: 1servingCalories: 457kcalCarbohydrates: 52gProtein: 6gFat: 24gFiber: 1gNet Carbs: 51g

The information shown is an estimate provided by an online nutrition calculator.

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