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    Home » Blog posts by Rosanna ETC » Desserts

    Toblerone Lava Cake In A Mug (Microwave Cake)

    Published: Nov 20, 2021 · Modified: May 9, 2022 by Rosanna Stevens · This post may contain affiliate links · 6 Comments

    Toblerone lava cake in a mug - moist, delicious and takes under 5 minutes to make! This is the perfect quick late-night snack recipe to make when you have a craving for something sweet, because you cook the sponge in the microwave.

    The idea behind a lava cake is that there is a hot pocket of melted chocolate in the middle, and Toberlone works well as you can break off a triangle and just sink it into the batter to melt whilst the sponge cooks. The honey and almond nougat also leaves little sweet crunchy bits in the sponge, it honestly is delicious. I love this Toblerone lava cake in a mug served on its own but it's even more decadent with a scoop of vanilla ice cream on top.

    A microwave sponge cake recipe is a great one to have up your sleeve as it can be made so quickly and you don't need a ton of measuring equipment and weighing scales, just a teaspoon, a tablespoon and a fork to mix it all together. I experimented with this Toblerone lava cake recipe for a while to get it just right, and I'm so happy with how it turned out. And reader, a lot of Toberlone chocolate was harmed in the creation of this recipe. A lot.

    Toblerone lava cake in a mug with vanilla ice cream

    I make this gooey chocolate mug cake with cake mix and it's very simple, just make up the batter in a bowl with a fork, pour it into a coffee mug and sink a few chunks of Toblerone chocolate in the middle. Microwave it and voila. You get a moist sponge cake with melted Toblerone in the middle ready to be devoured. I could almost eat the microwave cake batter on its own like a batter dip but trust me, you want this recipe warm.

    Toblerone lava cake in a mug with ice cream on top

    This microwave sponge cake recipe for Toblerone lava cake was inspired by a poll I did on my Instagram, asking followers what food they looked forward to eating the most around Thanksgiving and Christmas. Someone answered Toblerone and I thought, what better than a quick microwave cake using Toblerone bar.

    Have more time? Try some of my other desserts!

    Jump to:
    • Ingredients
    • Instructions
    • Substitutions and Variations
    • Equipment
    • Storage
    • Top tip
    • Toblerone Lava Cake In A Mug

    Ingredients

    • Toblerone chocolate
    • Plain flour
    • Egg
    • Granulated white sugar
    • Milk
    • Canola/maize oil
    • Vanilla extract
    • Baking powder
    • Salt

    See the recipe card for quantities.

    Instructions

    This Toblerone lava cake in a mug could not be simpler to make.

    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 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.

    Serve on its own, with cream or with a scoop of vanilla ice cream.

    Toblerone lava cake in a mug

    Substitutions and Variations

    There are infinite possibilities with this mug cake recipe, here are a few.

    • Chocolate - Want to change up the Toblerone? Try it with something else!
    • Sugar - Try honey or maple syrup instead of granulated sugar
    • Oil - this recipe also tastes great with coconut oil

    Equipment

    You will need a small mixing bowl, a fork and a coffee mug. So easy right?! You can even mix it in the mug but I prefer to do it in a bowl to give myself more room to manoeuvre.

    Storage

    This microwave mug cake is best enjoyed at the time of cooking, so just make as much as you need!

    This also doesn't stand up well to freezing.

    Top tip

    You can add more Toblerone if it will fit but keep in mind that the cake mixture will expand as it cooks due to the baking powder, so be sure to leave enough room in the mug. I fill mine just over halfway before putting in the chocolate.

    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
    Print Recipe Pin Recipe
    Prep Time 4 mins
    Cook Time 1 min
    Total Time 5 mins
    Course Dessert
    Cuisine American
    Servings 1 mug cake
    Calories 710 kcal

    Equipment

    • mixing bowl
    • microwave safe coffee mug

    Ingredients
      

    • 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

    Instructions
     

    • 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. 

    Nutrition

    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
    Tried this recipe?Let us know how it was!
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    Reader Interactions

    Comments

    1. Carol says

      November 20, 2021 at 4:37 pm

      5 stars
      Omg…I love Toblerone and this mug cake is insane i need to try and stop myself making it every night

      Reply
    2. Kate says

      November 20, 2021 at 4:46 pm

      5 stars
      I mean!!!
      Genius combo, can’t wait to make it!

      Reply
    3. Stacy says

      November 20, 2021 at 7:44 pm

      5 stars
      Amazing! The recipe is so easy, my daughter makes them herself. Perfect recipe for when you want cake but don't feel like baking.

      Reply
    4. Sue says

      November 20, 2021 at 10:40 pm

      5 stars
      Who can resist the simplicity of a mug cake? Not this girl! And using Toblerone basically puts it over the top!

      Reply
    5. Andrea says

      November 21, 2021 at 1:36 am

      5 stars
      i love mug recipes! this one is so good!

      Reply
    6. Cindy Mom the Lunch Lady says

      November 21, 2021 at 8:58 pm

      5 stars
      I always add a Toblerone to my Christmas list every year. I can't wait to try to make this lava cake.

      Reply

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    Rosanna Stevens opening a bottle of champagne.

    Rosanna Stevens opening a bottle of champagne.

    I'm Rosanna, a trained chef, published writer and food and style fanatic. I believe in using food and drink to make every day an event with fresh and seasonal produce, wine pairings and a perfectly styled plate.

    I write for publications in the UK, USA and Central America on food, travel and the destinations I love and have also created several recipe ebooks and Stop The Scroll, a beginner's guide to food styling and photography. Thanks for being here!

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