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+ servings
Cake made in a mug decorated with a cookie with a spoon and a jar of biscoff on a wooden board.
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Biscoff Mug Cake

A soft and fluffy Biscoff mug cake takes just minutes to make in the microwave and is the perfect indulgent sweet treat for one.
Course Dessert
Cuisine International
Total Time 5 minutes
Servings 1
Calories 784kcal

Ingredients

  • 35 g self-raising (self-rising) flour
  • 30 g salted butter
  • 40 g Lotus Biscoff cookie butter plus an extra tablespoon of Biscoff for drizzling (optional - to serve)
  • 30 g light brown sugar
  • 2 tablespoons milk
  • 1 egg yolk
  • ½ teaspoon vanilla
  • a pinch of cinnamon
  • 1 Biscoff cookie (optional - to serve)
  • Biscoff cookie crumbs (optional - to serve)

Instructions

  • Add the salted butter to a mug (see my notes for tips on size etc), cover with a sheet of paper towel then place in the microwave and heat for 30 seconds to melt.
    30 g salted butter
  • Add the brown sugar to the melted butter and mix to melt the sugar slightly.
    30 g light brown sugar
  • Add the Biscoff and stir until smooth, then stir in vanilla and milk.
    40 g Lotus Biscoff cookie butter, ½ teaspoon vanilla, 2 tablespoons milk
  • Add egg yolk and stir until combined.
    1 egg yolk
  • Add self-raising flour and cinnamon and mix until just smooth and combined (don't overmix).
    35 g self-raising (self-rising) flour, a pinch of cinnamon
  • Microwave on high for 1½ - 2 minutes (check at 1½ minutes) depending on your microwave.
  • The cake is done when it's puffed up, but will still feel spongey to the touch and a little tacky on top. If it needs longer, do so in short 10 - 15 second bursts.
  • Serve immediately, decorated with a Biscoff cookie, some extra Biscoff (warmed) drizzled on top and sprinkled with Biscoff cookie crumbs (if using).
    1 Biscoff cookie, Biscoff cookie crumbs

Video

Notes

  • Mug size -  a minimum of 350ml (approx 12 oz) capacity is required for this recipe. See the section above titled How to choose the right mug for more tips.
  • This cake won't be browned on top like a cake baked in the oven. This doesn't mean that it isn't cooked. Keep in mind that microwave ovens vary greatly as well.
  • Overcooking will result in a tough, rubbery mug cake.
  • When you take the cake out of the microwave it will sink into the mug slightly, this is normal.
*Please note that the amount of calories per serve is provided as a guide only, as ingredients and cooking methods can vary greatly*

Nutrition

Calories: 784kcal | Carbohydrates: 79g | Protein: 11g | Fat: 47g | Saturated Fat: 22g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 9g | Trans Fat: 1g | Cholesterol: 264mg | Sodium: 226mg | Potassium: 166mg | Fiber: 1g | Sugar: 45g | Vitamin A: 1076IU | Calcium: 111mg | Iron: 1mg