Biscoff Mug Cake Recipe: 90-Second Rich & Easy Dessert Treat

Question 1

What is Biscoff?

Accepted Answer

Biscoff is the brand name for caramelized biscuits made by Lotus, known for their spiced, gingerbread-like flavor. Biscoff spread—also called cookie butter—is made by grinding those cookies into a creamy, sweet spread. It’s rich, flavorful, and the perfect base for a Biscoff mug cake.

Question 2

How do you soften Biscoff spread?

Accepted Answer

If your Biscoff spread feels too stiff to stir, simply microwave it in a bowl for 10–15 seconds. Stir and repeat if needed. You want it soft, not runny, so keep the microwave on medium power.

Question 3

Can you make this Biscoff mug cake vegan?

Accepted Answer

Yes! Since Biscoff spread itself is vegan, all you need to do is use plant-based milk like almond, soy, or oat, and replace vegetable oil with coconut oil or vegan butter. The recipe contains no eggs, so it’s an easy vegan dessert option.

Question 4

Can you make this Biscoff cake in a mug in advance?

Accepted Answer

Not really. Mug cakes are best eaten fresh from the microwave. If you let it cool and reheat it later, the texture becomes chewy or rubbery. For better results, pre-measure your dry ingredients and store them, then just mix and microwave when ready.

Question 5

Can I make this cake in an oven or air fryer?

Accepted Answer

You can! Bake in a ramekin at 350°F (175°C) for 12–15 minutes or air fry at the same temperature for about 10 minutes. Keep an eye on it; it should rise and be set in the middle.

Question 6

What is a substitute for Biscoff cookie butter?

Accepted Answer

If you can’t find Biscoff spread, use Speculoos spread or another cookie butter brand. Peanut butter or almond butter can work in a pinch, but the flavor will be totally different—more nutty than spiced.

Question 7

Why is my Biscoff mug cake dry?

Accepted Answer

It’s likely overcooked. Start with 60 seconds and add time in small bursts. Also check your microwave’s wattage—higher wattages cook faster. Make sure you measure flour accurately and don’t skimp on the milk or oil.

Question 8

Is Biscoff spread vegan?

Accepted Answer

Yes! Lotus Biscoff spread contains no dairy, eggs, or animal products, making it 100% vegan and ideal for plant-based desserts like this mug cake.

Question 9

Why is my mug cake tough and chewy?

Accepted Answer

This usually means it was overmixed or overcooked. Mix just until combined, and don’t exceed 90 seconds in the microwave unless necessary.

Question 10

Why did my mug cake mixture overflow?

Accepted Answer

You probably used a mug that was too small or filled it too high. Use a 10–12 oz microwave-safe mug and only fill it halfway to allow room for the cake to rise.

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