Easy White Chocolate Lava Mug Cake in a Microwave

4 (1 Review)
1 mug cake
3 Minutes

A quick and easy White Chocolate Lava Mug Cake made in a Microwave. This healthy chocolate lava cake has a white chocolate center made with cashew butter and chocolate chips and is perfect for an instant gooey mug cake dessert. No oven or baking needed!

Stating a fact here: making a molten chocolate lava cake in a microwave is not as easy as I thought.

I’ve tried and test tested healthy mug cakes before and have that part nailed down - the light airy and fluffy texture. But getting a gooey molten chocolate center in a mug cake does not work the same unless you add a ton of the ‘bad ingredients’.

After a lot of experimenting, I found the key for this recipe: Cashew butter (or another nut/seed butter) stirred with a bit of coconut oil + chocolate chips.

So now the runny melty filling remains in place, instead of dropping to the bottom or drying out.

Easy White Chocolate Lava Mug Cake in a Microwave

4 (1 Review)

Recipe details

  • 1 mug cake
  • Prep time: 2 Minutes|Cook time: 1 Minutes|Total time: 3 Minutes


Molten Lava Filling:


Lightly grease a 1 cup (8 oz) ramekin or mug and dust the inside with cacao/cocoa powder.
In a bowl, mix flour, cocoa, sweetener and baking powder.
Add in milk and egg and stir or whisk lightly to form a smooth batter. Do not over-mix, or the cake will be too dense; Small lumps are okay.
Transfer ¾ of the batter into the mug/ramekin.
In a small bowl, stir together cashew butter and coconut oil.
Add nut butter blend and chocolate chips into ramekin.
Pour remaining batter on top and spread.
Microwave on high for 45 seconds or until the top is set and dry to touch. Microwave additional time at 5 second intervals if needed.
Let cool a few minutes, invert onto a plate and dig in!


  • Do not over-mix the batter or the cake will be too dense.
  • Nutrition details on my website: www.haylskitchen.com/easy-white-chocolate-lava-mug-cake-in-a-microwave

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Haylee Jane Monteiro

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Comments and Reviews

Rate this recipe, share your thoughts, or ask a question!

4 (1 Review)

Comments and Reviews

Rate this recipe, share your thoughts, or ask a question!

4 (1 Review)
  • Sam
    on Jan 5, 2021

    Is there a way to make this without a microwave. I'm opposed to using them. Thanks, it looks scrumptious!! I appreciate your culinary research on our behalf.

    • Haylee Jane Monteiro
      Haylee Jane Monteiro
      on Jan 5, 2021

      Hi Sam! This really means a lot!

      I haven't tried this myself, but I think 8-10 minutes in the oven at 350°F should do it. I really would love to know how it turns out!

  • Janet Thatcher
    Janet Thatcher
    on Jan 5, 2021

    Hi how many calories?

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