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a vegan funfetti mug cake inside a white mug topped with a dollop of vanilla frosting and sprinkles

Funfetti Mug Cake (Vegan, Gluten-Free)

  • Author: Kaylie Grace
  • Prep Time: 3 minutes
  • Cook Time: 2 minutes
  • Total Time: 5 minutes
  • Yield: 1 serving 1x
  • Category: Dessert, Snack
  • Method: Microwave
  • Cuisine: American
  • Diet: Vegan


This funfetti mug cake is a quick and easy, single-serving dessert that’s made in 5 minutes! It’s light, fluffy, moist, sweet, and reminiscent of vanilla birthday cake. The recipe is vegan, gluten-free, oil-free, and soy-free. Don’t forget to top this cake-in-a-mug with frosting and rainbow sprinkles for a classic cake batter flavor and appearance – yum!




  1. Add all ingredients to a mug. Mix ingredients until combined.
  2. Microwave for 2 minutes.
  3. Top the mug cake with vanilla frosting. Enjoy!


  • The cooking time may vary depending on your microwave. The edges should be light golden brown while the middle is moist. Approximately 2 minutes always works well for me.
  • I recommend using pre-made oat flour, but you can also create your own at home. To create oat flour, simply process oats in a food processor/high-speed blender until a fine flour is formed.
  • The nutrition information below is an an estimate without frosting.


  • Serving Size: 1 serving
  • Calories: 300
  • Fat: 12g
  • Carbohydrates: 43g
  • Fiber: 3g
  • Protein: 6g

Keywords: vegan funfetti mug cake, vanilla mug cake recipe, cake in a mug