Banana Walnut Mug Cake
Craving a cozy dessert that’s quick, easy, and completely plant-based? This Vegan Banana Walnut Mug Cake is the perfect treat when you want something warm and satisfying in just minutes. Made with ripe banana, cinnamon, and crunchy walnuts, this single-serve cake is naturally sweet, soft, and full of comforting flavors—without any eggs or dairy. It’s a delicious way to treat yourself with minimal ingredients and effort, making it ideal for a quick dessert, a sweet afternoon snack, or even a lazy weekend breakfast!

This post may contain affiliate links. Please read my disclosure policy for more information.
Why You’ll Love This Recipe
You’ll love this Banana Walnut Mug Cake because it’s everything you want in a quick treat—warm, soft, and bursting with cozy flavor. The ripe banana makes it naturally sweet and moist, while the walnuts add just the right amount of crunch. It comes together in minutes with simple pantry ingredients and no baking required! Whether you’re looking for a speedy dessert or a sweet snack, this mug cake satisfies your cravings with minimal effort and maximum comfort.

Ingredients
Just a few basic ingredients make this delicious vegan banana walnut mug cake recipe.

Banana – Adds natural sweetness and moisture. The riper, the better!
All-purpose flour – Provides structure to the cake. For a gluten free recipe, substitute the flour with almond flour.
Baking powder – Helps the cake rise and become fluffy.
Almond milk – Keeps the cake moist; you can use any milk.
Vegetable oil – Adds richness and tenderness to the crumb.
Brown sugar – Enhances the banana’s sweetness with a caramel note.
Chopped walnuts – Give texture, crunch, and a nutty depth.
Cinnamon – Brings warmth and pairs beautifully with banana.
How To Make a Banana Walnut Mug Cake

Mash the banana in a mug.

Stir in the wet ingredients.

Add the dry ingredients and mix gently.

Stir in chopped walnuts and microwave.
Recipe Tips
- Use a mug that’s at least 10–12 oz to prevent overflow.
- For extra indulgence, add a few chocolate chips or a drizzle of maple syrup on top.
- If your banana isn’t ripe enough, microwave it for 15–20 seconds to soften.
- Substitute walnuts with pecans or omit for a nut-free version.
Serving Suggestions
- Top with a dollop of vegan whipped cream or a scoop of dairy-free vanilla ice cream.
- Dust with a bit of powdered sugar or an extra sprinkle of cinnamon.
- Enjoy with a hot cup of coffee or tea for a comforting break.

More Banana Mug Cake Recipes
If you enjoy bananas, try these other mug cake recipes;

Banana Walnut Mug Cake
Need Metric Measurements?
Use the button options below to toggle between US cups and Metric grams.
Ingredients
- 1 banana
- 3 tablespoons all purpose flour
- 1/2 teaspoon baking powder
- 1 tablespoon almond milk
- 1 tablespoon vegetable oil
- 1 tablespoon brown sugar
- 1/2 teaspoon cinnamon
- 2 tablespoons chopped walnuts
Instructions
- In a microwave-safe mug, mash the banana until smooth.
- Add the almond milk, vegetable oil, and brown sugar. Stir until well combined.
- Mix in the flour, baking powder, and cinnamon until a smooth batter forms.
- Fold in the chopped walnuts, leaving a few for topping if desired.
- Microwave on high for 1 minute to 1 minute 20 seconds, or until the top is set and a toothpick comes out clean.
- Let it cool for a minute before enjoying!
Notes
Nutrition
The information shown is an estimate provided by an online nutrition calculator.