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biscoff mug cake with melted cookie butter topping

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

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.

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

Ingredients

Scale

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

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

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