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+ servings
Gluten-free mug cake.

Best Chocolate Gluten-Free Mug Cake

Justine Drosdovech
This gluten-free mug cake is rich, moist, and full of chocolatey flavor. Made with oat flour, it's incredibly quick and easy to whip up when a dessert craving strikes!
5 from 55 votes
Prep Time 3 minutes
Cook Time 2 minutes
Total Time 5 minutes
Course Dessert
Cuisine American, Gluten-Free, Vegan
Servings 1 mug cake
Calories 534 kcal

Equipment

  • Mug
  • Mixing bowl
  • Spatula

Ingredients
 

  • ½ small banana, mashed ($0.03)
  • 1 ½ tablespoons natural peanut butter ($0.05)
  • 3 tablespoons plant milk ($0.07)
  • ½ teaspoon vanilla extract ($0.11)
  • ¼ cup oat flour ($0.04)
  • 2 tablespoons cacao powder ($0.22)
  • 1 tablespoon organic brown sugar ($0.02)
  • teaspoon baking soda ($0.01)
  • teaspoon salt ($0.01)
  • 1 ½ tablespoons vegan chocolate chips ($0.14)

Toppings optional

  • Extra chocolate chips
  • Extra peanut butter
  • Dairy-free ice cream
  • Chocolate or vanilla icing

Instructions
 

  • In a bowl, mash the banana well, then combine it with peanut butter, plant milk, and vanilla extract.
  • Add in the oat flour, cacao powder, brown sugar, baking soda, and salt, stirring until well combined. Fold in the chocolate chips.
  • Transfer the batter to a heat-safe mug. Sprinkle the top with extra vegan chocolate chips and microwave for 2-3 minutes, or until the center is just set.
  • Alternatively, bake it in an oven at 350°F for 15-20 minutes, or until a toothpick inserted into the center comes out fairly clean.
  • Serve immediately with extra chocolate chips, peanut butter, icing, or ice cream on top. Happy eating!

Notes

  • Cut down the cleanup: We think it's easier to combine all of the ingredients before adding them to the mug, but you can feel free to combine everything in a single cup for quicker cleanup.
  • Adjust the cooking time: Every microwave and oven cooks differently. Be sure to check on your mug cake as it bakes, and adjust the time as needed.
  • Expect it to sink: As mug cakes cook, they expand and rise in the microwave like a souffle. Once they begin to cool, they tend to deflate and sink a bit in the center, but this doesn't affect the flavor at all!
  • Use an appropriately sized mug: For the best results, fill your mug 3/4 of the way up. If you have extra batter, use another mug or ramekin to prevent overflows.
  • Nutritional information is a rough estimate and should not be taken as health advice.
  • Recipe cost calculations are based on prices found in the top 5 U.S. grocery chains. As such, prices may vary based on your location. All prices are in USD.

Nutrition

Serving: 1mug cake | Calories: 534kcal | Carbohydrates: 68.7g | Protein: 15g | Fat: 25.8g | Saturated Fat: 8.8g | Polyunsaturated Fat: 4.8g | Monounsaturated Fat: 10.2g | Trans Fat: 0g | Cholesterol: 0.3mg | Sodium: 561mg | Potassium: 807.9mg | Fiber: 10.3g | Sugar: 30.3g | Vitamin A: 140.7IU | Vitamin C: 5.1mg | Calcium: 123.1mg | Iron: 4.8mg
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