This 3-ingredient healthy banana mug cake comes together in the microwave in about 2 minutes. It tastes like moist banana bread but is extremely simple to make. The recipe is naturally vegan (when using plant-based yogurt), oil-free, gluten-free (with oat flour), sugar-free if you choose an unsweetened yogurt, and requires no refined flour or added fat.
This banana mug cake is ideal when you want a single serving dessert or quick breakfast. It uses only banana, oat flour and yogurt—the yogurt keeps the cake incredibly moist while the banana provides natural sweetness and structure. Ready to have a healthy dessert any day of the week?
How to make healthy banana mug cake
Preparation is straightforward: mash half a ripe banana, mix it with oat flour and yogurt, then microwave the batter for about one to two minutes. The result is a soft, tender cake for one with minimal effort and minimal cleanup.
Microwave banana cake ingredients
The recipe relies on three wholesome pantry staples. Replacing milk with a smooth yogurt is the trick to achieve a moist texture without oil. You don’t need butter, added sugar, or baking powder for this simple microwave cake.
Ingredients:
- Banana
- Oat flour
- Yogurt
Optional: top with a few dark chocolate chips or chopped nuts for extra indulgence, though the cake is delicious on its own.
FAQ – Banana mug cake
Can I make this mug cake high protein?
Yes. Replace part of the oat flour with vegan protein powder—for example 15 g oat flour and 15 g vegan protein powder. Avoid using whey protein in the microwave because it can dry out the cake.
Which banana should I use?
Use half a ripe banana. A ripe banana has brown spots or a brown peel and gives more sweetness and flavor. If your banana is only yellow and not very ripe, consider adding 1 teaspoon of maple syrup or honey to boost sweetness.
How can I replace oat flour?
Other flours can work. To keep the cake refined-flour-free try teff, spelt, or whole wheat flour. For a lower-carb option use almond flour or a mix of almond and coconut flour (avoid using only coconut flour, which can produce a very dry result).
Which yogurt should I use?
Use a smooth yogurt such as unsweetened soy or almond yogurt, regular dairy yogurt, low-fat yogurt, or a probiotic yogurt. If you use thick Greek yogurt, add a teaspoon or two of milk to adjust the batter’s consistency.
Can I add extra ingredients?
Yes. Stir in a teaspoon of nut butter, a few chopped walnuts, dark chocolate chips, or a splash of vanilla extract. These additions enhance flavor without changing the simple method.
Can I make this banana mug cake in the oven?
Yes. Bake in an ovenproof small dish at 180°C (350°F) for about 10–15 minutes. Check for doneness with a toothpick; times may vary depending on dish size and oven.
3 Ingredient Banana Mug Cake
Ingredients
- 1/2 banana
- 30 grams (1/3 cup) oat flour
- 50 grams (3 tbsp) yogurt of choice (smooth)
Topping (optional)
- 1 tsp chocolate chips
Instructions
- In a bowl, mash the banana and mix with oat flour and yogurt until combined. If the batter is very thick, add up to 1 teaspoon of milk to adjust consistency.
- Grease a microwave-safe mug or spray with cooking spray. Fill the mug about two-thirds full with batter.
- Microwave on high for about 1–2 minutes, until the cake is set. Cooking time may vary by microwave. Let cool briefly before eating.
Nutrition
Carbohydrates: 28 g |
Protein: 9 g |
Fat: 3–4 g (varies by yogurt)
Like this recipe? Rate and comment below!