Enjoy this simple three-ingredient banana mug cake, naturally sweetened and enhanced with the warmth of cinnamon spice. Topped with raisins for an extra sweet and chewy flavor, all mixed and filled in one mug, this mug cake treat makes for an excellent sweet and healthy breakfast. Not only does it satisfy your sweet cravings, but it also provides a nutritious and energizing start to your day.

Ingredients For Banana Oat Mug Cake Recipe
- Bananas: Yellow, ripened with brown spots offers the sweetest flavor, texture, and nutrients.
- Quick-Cooking Oats: Not rolled oats. As the primary dry ingredient, adds hearty texture, and fiber.
- Cinnamon: Bring warmth, a layer of spiciness, and a comforting aroma to mug cakes.
- Raisins (optional): As a topping, bring a hint of tartness, sweetness, and a chewy texture.
Time & Preparations
4 servings
3 minutes
20 minutes
148 kcal
23 minutes
breakfast, dessert, snack
American
4 mugs / 500 grams
Banana Oat Mug Cake Recipe
- 4 large ripe bananas (7-8-inches long/460 grams/2 cups mashed) peeled
- ½ cup (45 grams) organic quick-cooking oats (or gluten-free), not rolled oats
- 2-3 teaspoons (5 grams) ground cinnamon
- Optional: ¼ cup, about 50 seedless raisins (40 grams) not packed, for topping
Recommended Equipment
- Mixing Bowl: For combining and mixing ingredients.
- Small Masher or Fork: To mash bananas.
- Mugs or Ramekins: Oven-proof (6 oz./ ¾ cup/170g) mugs or ramekins.

How to Make 3 Ingredient Banana Oat Mug Cake
Preheat the Oven: Preheat the oven to 350°F (175°C). Place 4 (6 ounces /170 grams) oven-proof mugs or ramekins on a baking sheet with even spacing for consistent baking.
Mash Bananas: Peel and mash bananas in a large mixing bowl, along with ground cinnamon. It will yield approximately 2 cups (460 grams) of mashed bananas.
Add Oats: Add quick-cooking oats and mix until well combined.
Note: If you prefer extra sweetness, you can drizzle 1 – 2 teaspoons (5 – 10 milliliters) of honey or maple syrup over the mixture. Make sure to mix it in thoroughly.
Single-Serve Banana Oat Mug Cake: For a single-serving recipe, use 1 large banana (½ cup/115 g), ½ teaspoon (1.3g) of cinnamon, and 2 tablespoons (11g) of quick-cooking oats. Optionally: 1 tablespoon (10g) raisins. Continue with the recipe.


Fill Mugs: Fill each mug or ramekin with 1/3 – 1/2 cup (100 – 115 grams) of the mixture, depending on the size of the bananas used. Avoid overfilling as the mixture will rise during baking.


Topping: Optionally, top each mug with 1 tablespoon (10 grams) of seedless raisins, if desired.
Bake: Place the baking sheet with mug cakes in the preheated oven and bake for about 20 minutes, or until the tops firm up.
Cool: Once baked, remove the baking sheet from the oven. Cool on a wire rack for a few minutes before serving.


Serve Warm: Enjoy the mug cakes while they are still warm for the best flavor. Consider serving with an extra slice of banana or a dollop of yogurt for added richness.

Recipe Tips for Best Results
- Bananas: The riper the bananas, the sweeter your mug cakes will be.
- Oats: Use quick-cooking oats over rolled oats for a smoother texture.
- Raisins: Try toppings like chopped nuts, diced bananas, or a sprinkle of chocolate chips.
- Cinnamon: For chocolate-flavored mug cakes, substitute cinnamon with cacao powder.
- Bake for no more than 20 minutes to avoid overbaking and maintain a moist texture.
Storing & Serving
These mug cakes maintain their moist texture even when made days ahead and reheated.
Storage: Once cooled, store the mug cakes in their original mugs or ramekins, refrigerating them in an airtight container for up to 2-3 days. (4 ramekins fit in a 9.6-cup container)
Reheating: To reheat, cover the cake mugs loosely with a damp paper towel and microwave for 20-30 seconds until warmed through. Alternatively, you can reheat them uncovered in a preheated oven at 350°F (175°C) for about 5-7 minutes, or until warmed to your liking.
Serving: Enjoy the mug cakes while they are still warm after baking or reheating.
Yields: 4 mug cakes / 500 grams in total
Servings: 4 servings of 6 ounces / 125 grams each mug cake

Serving Suggestions
- Yogurt: Top warm mug cake with a dollop of yogurt for an extra touch of creaminess.
- Syrup: Drizzle honey, maple syrup, or fruit syrup over the top to add another layer of sweetness.
- Fruits: Serve them with fresh blueberries, bananas, or apple slices for fresh fruit addition.
- Lunchbox: Pack these mug cakes in kids’ or your lunchbox for a healthy and filling meal on the go.
- Snack: Enjoy them as a dessert, snack, or brunch treat for a healthy and satisfying bite.
You May Also Like…
- 2 Ingredient Banana Pancakes Recipe
- Orange-Blueberry Sauce Recipe
- 3 Ingredient Vanilla Yogurt Cream Recipe
Nutrition Facts
4 servings per container
Serving Size125
- Amount Per ServingCalories148
- % Daily Value *
- Total Fat
1.2g
2%
- Saturated Fat 0g 0%
- Sodium 0.1mg 1%
- Potassium 451mg 10%
- Total Carbohydrate
34g
13%
- Dietary Fiber 4.6g 17%
- Total Sugars 14g
- Protein 2.9g 6%
- Vitamin C 11mg 13%
- Calcium 2mg 1%
- Iron 6mg 34%
- Vitamin B6 25mg 1471%
- Manganese 23mg 1000%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
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