Biscoff Mug Cake: Gooey, Buttery Sweetness in Just 5 Minutes

Biscoff mug cake is the perfect answer to those late-night cravings when you want something warm, sweet, and ready fast. With just a few pantry ingredients and your favorite mug, you can whip up a soft, buttery cake with the signature spiced caramel flavor of Biscoff cookie butter in under five minutes. It’s one of those desserts that tastes like it took way more effort than it actually did and that’s exactly what makes this biscoff mug cake so special.

The First Time I Fell in Love with Biscoff Mug Cake

It was one of those quiet nights the kind where the world feels still, and all you want is a spoonful of something indulgent. I had just put away dinner dishes and settled into my favorite blanket when the craving hit. I didn’t want a full cake. I didn’t want to leave the house. I wanted something cozy. Warm. Melty.

Then I remembered that half-used jar of Biscoff cookie butter tucked in the back of the pantry.

I grabbed my biggest mug and started experimenting. A few tablespoons of Biscoff, a splash of milk, a little flour, sugar, baking powder… It came together quickly, like so many of my favorite mug recipes do. I popped it into the microwave, waited 80 seconds, and what came out was incredible a golden, fluffy biscoff mug cake with gooey flavor in every bite.

Now, this biscoff mug cake lives at the top of my go-to list, right alongside my nutella mug cake and my classic Nutella mug cake. Whether you’re hosting a sleepover, baking with kids, or treating yourself after a long day, this cake never disappoints.

The best part? You can swirl in extra Biscoff or top it with crushed cookies for crunch. However you make it, this biscoff mug cake proves that a little bit of cookie butter and a microwave can deliver major comfort.

That’s the heart of mug baking for me and exactly why this biscoff mug cake needed to be shared.

Biscoff Mug Cake: Gooey, Buttery Sweetness in Just 5 Minutes

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• Author: Rita
• Total Time: 5 minutes
• Yield: 1 mug cake

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Description

A soft and gooey Biscoff mug cake made with cookie butter, flour, and milk ready in under 5 minutes for the ultimate caramel-flavored dessert fix.

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Ingredients

3 tablespoons Biscoff cookie butter
4 tablespoons milk
1 tablespoon vegetable oil
4 tablespoons all-purpose flour
1 tablespoon granulated sugar
¼ teaspoon baking powder
¼ teaspoon vanilla extract
Pinch of salt

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Instructions

In a 10–12 oz microwave-safe mug, stir together the Biscoff cookie butter, milk, and oil until smooth
Add the sugar and stir in
Sift in the flour, baking powder, vanilla, and salt, then gently stir until fully combined, scraping the sides and bottom
Clean the edges of the mug for even cooking
Microwave on high for 60–90 seconds, checking at the 80-second mark
Top with more Biscoff spread and serve warm

Notes

Use a wide mug to prevent overflow and ensure even cooking
Avoid overmixing the batter to keep it tender
Start with 60 seconds in the microwave and adjust in 10-second intervals
Top with whipped cream, crushed Biscoff cookies, or melted cookie butter for extra indulgence

• Prep Time: 3 minutes
• Cook Time: 2 minutes
• Category: Mug Cakes
• Method: Microwave
• Cuisine: American

How to Make the Perfect Biscoff Mug Cake in Minutes

This biscoff mug cake comes together fast, requires zero fancy tools, and brings all the warm, spiced caramel flavor Biscoff lovers crave. With just a mug, a microwave, and eight ingredients, you’ll have a soft, gooey dessert in under five minutes.

Ingredients

Here’s what you’ll need for one perfect serving:

Optional topping: More Biscoff cookie butter for drizzling

Instructions

1. In a 10 to 12-ounce microwave-safe mug, mix the Biscoff cookie butter, milk, and oil until fully blended.
2. Stir in the sugar until combined.
3. Sift in the flour, baking powder, salt, and vanilla. Stir gently, making sure to scrape the sides and bottom.
4. Clean the edges of the mug with a paper towel for a smooth rise.
5. Microwave on high for 60 to 90 seconds. The sweet spot is usually around 80 seconds don’t overcook.
6. Top with an extra spoonful of Biscoff and let it melt into the warm cake before serving.

Just like my candy corn mug cake, this recipe delivers max flavor with minimal effort. The texture is fluffy, the flavor is deep and buttery, and the process is simple enough for late-night cravings or after-school treats.

Biscoff Mug Cake Troubleshooting & Flavor Upgrades

Mug cakes are quick, cozy, and satisfying but if your first try turns out dry or dense, don’t worry. With a few small tweaks, you can make this biscoff mug cake perfectly gooey every time.

Avoiding Dry or Rubbery Mug Cakes

If your cake came out rubbery or overcooked, the microwave time is likely the issue. All microwaves vary in power, so always start with 60 seconds and work up in 10-second bursts. When the top looks just set and springs back lightly to the touch, it’s done.

Here are a few other key tips:

• Use a 10–12 oz mug. Smaller mugs can cause overflow or uneven cooking.
• Don’t overmix. Stir until combined, but no more overmixing creates dense texture.
• Let the cake rest for 1–2 minutes after cooking. This lets it finish baking gently and improves texture.

Add More Flavor (With Little Effort)

Want to take your biscoff mug cake to the next level?

• Swirl in extra cookie butter before microwaving for a lava effect.
• Add a pinch of cinnamon or nutmeg for more spice.
• Top it with whipped cream, crushed Biscoff cookies, or a drizzle of caramel.

The beauty of this recipe is how flexible it is. Like my reader-favorite hot cocoa mug cake, it’s easy to personalize based on what’s in your pantry.

Whether you’re baking for comfort, fun, or just because the cookie butter is calling, this mug cake always delivers that warm, nostalgic bite.

Why a Biscoff Mug Cake Is More Than Just Dessert

Sometimes dessert isn’t just about sweetness it’s about comfort, connection, and creating a quiet moment of joy for yourself. This biscoff mug cake captures all of that in just one mug.

It’s the kind of treat you can make when the world feels too loud, or when you simply need something warm and buttery to soothe the edges of your day. The smell of spiced cookie butter rising in the microwave, the soft texture of that first bite, the way the melted Biscoff swirls into every spoonful it’s more than just a cake. It’s a moment.

A Spoonful of Sweet Simplicity

For me, recipes like this aren’t just about the food. They’re about pausing. About saying, “I deserve something special,” even if it only takes five minutes and a microwave. That’s why I keep coming back to mug cakes like this one and why I share them.

Like my red velvet mug cake, this version uses simple ingredients to deliver bold, cozy flavor without the hassle. There’s no need to preheat an oven or wash a sink full of dishes. All you need is a spoon, a mug, and five quiet minutes.

So go ahead drizzle on more cookie butter. Add a cookie on top. Or keep it simple and let the cake speak for itself. However you enjoy it, let it remind you that little things like a perfect biscoff mug cake can make a big difference.

Because around here, dessert isn’t just something sweet. It’s something meaningful.

Conclusion

There’s something incredibly comforting about a warm, gooey biscoff mug cake made in minutes. It’s not just the flavor the deep caramel notes of the cookie butter, the soft cake texture, or the golden melt on top. It’s the feeling of making something joyful for yourself with almost no effort.

In a world that often asks for more, this recipe gives you permission to do less while still treating yourself well.

Whether it’s your first time trying Biscoff or you’ve had a jar tucked in your pantry forever, this mug cake will make you fall in love with it all over again. So next time you need a quick pick-me-up or a cozy late-night dessert, grab a spoon, and remember: comfort can come from the smallest, sweetest things especially when they fit in your favorite mug.

Looking for more sweet inspiration?

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Frequently Asked Questions About Biscoff Mug Cake