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Home » Recipes » Easy Keto Desserts

Quick Keto Chocolate Mug Cake

Posted: Apr 8, 2025 by Luka · Leave a Comment

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Sometimes, you just need something sweet—and fast. This keto chocolate mug cake is your go-to dessert for those moments. Made with simple pantry staples, it's rich, chocolatey, and ready in under 5 minutes.

Keto chocolate mug cake topped with melting butter in a white mug on a wooden counter
Quick keto chocolate mug cake—ready in minutes and perfect for cravings!

Recipe

Keto chocolate mug cake topped with melting butter in a white mug on a wooden counter

Quick Keto Chocolate Mug Cake

A quick and easy keto dessert made with dark chocolate, coconut flour, and butter — perfect for when you need something sweet, fast.
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Prep Time 2 minutes mins
Cook Time 1 minute min
Total Time 3 minutes mins
Course Dessert
Cuisine Keto, Low-Carb
Servings 1

Equipment

  • Microwave
  • Mug
  • Spoon

Ingredients
  

  • 1 oz dark chocolate - 90% cocoa, chopped
  • 1 tablespoon butter - plus extra for greasing
  • 1 tablespoon coconut flour
  • 1 egg
  • 1 keto friendly sweetener - adjust to taste
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Instructions
 

  • Add dark chocolate and butter to a microwave-safe mug. Microwave for 30–45 seconds until melted, then stir until smooth.
  • Add the egg, coconut flour, and sweetener. Stir until well combined.
  • Microwave on high for 45–60 seconds until the cake is set but still slightly soft in the center.
  • Let cool for 1–2 minutes. Enjoy warm directly from the mug!

Notes

Sweetener tip: Start with 1 teaspoon and taste the batter. Add more if needed—especially if your chocolate is very bitter.
Flour swaps: You can substitute almond flour (2 tbsp) instead of coconut flour for a slightly softer texture.
Texture tip: If you want it gooey in the middle like a lava cake, microwave for only 40–45 seconds.
No microwave? Bake at 350°F (175°C) for 10–12 minutes in an oven-safe ramekin.
Add-ins: Try a teaspoon of nut butter or a few chopped walnuts for extra richness.
Keyword chocolate mug cake, keto mug cake, low carb dessert, quick keto dessert
Want to Change Something? Go Ahead!Feel like swapping an ingredient? Go for it—no need to ask! Try it your way and let us know how it turned out.

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My Sweet Keto has been here since 2016 to help busy adults follow clean, realistic keto with simple habits, balanced meals, and the occasional sweet moment without the extremes. Created by Tisa and Luka.

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