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Toblerone lava cake in a mug with ice cream on top

Toblerone Lava Cake In A Mug

A microwave sponge cake recipe with a chunk of Toblerone bar sunk into the middle so it turns into a gooey chocolate mug cake. Perfect as a quick late-night snack.
5 from 6 votes
Prep Time 4 mins
Cook Time 1 min
Total Time 5 mins
Course Dessert
Cuisine American
Servings 1 mug cake
Calories 710 kcal


  • mixing bowl
  • microwave safe coffee mug


  • 32 grams Toblerone (one large piece from 360-gram bar)
  • 1 egg
  • ½ teaspoon vanilla extract
  • 2 tablespoon canola oil
  • 2 tablespoon granulated sugar
  • 2 tablespoon milk
  • 4 tablespoon all-purpose flour
  • ¼ teaspoon baking powder
  • 1 pinch salt


  • Take a small mixing bowl and whisk together the egg, sugar, oil and vanilla extract with a fork until all combined.
  • Then add the flour, baking powder and salt and combine.
  • Stir in the milk gradually until it is a thick and gloopy but not runny. When it reaches this consistency, stop adding milk. 
  • Pour the mixture into a coffee mug and sink a piece of Toblerone chocolate into the middle. 
  • Microwave at 800W power level for 90 seconds. The top will have risen and will be sticky but firm to touch when it is done.
  • Serve on its own, with cream or with a scoop of vanilla ice cream. 


Calories: 710kcalCarbohydrates: 69gProtein: 11gFat: 43gSaturated Fat: 10gPolyunsaturated Fat: 9gMonounsaturated Fat: 20gTrans Fat: 1gCholesterol: 167mgSodium: 221mgPotassium: 136mgFiber: 2gSugar: 46gVitamin A: 286IUCalcium: 122mgIron: 2mg
Keyword cake in a mug, microwave sponge cake, mug cake, toblerone chocolate, toblerone lava cake
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