A warm, soft, ultra-moist banana bread mug cake topped with a buttery cinnamon crumble. Ready in minutes, full of real banana flavor, and perfect for cozy cravings when you don’t want to bake a whole loaf.
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Ingredients
Cake Batter
all-purpose flour4tbsp
sugar1tbsp
baking powder1/4tsp
salt1pinch
mashed ripe banana2tbsp
milk2tbsp
melted butter1tbsp
vanilla extract1/4tsp
cinnamon1pinch
Crumb Streusel
flour1tbsp- brown sugar1tbsp
- cold butter1/2tbsp
- cinnamon1pinch
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Nutrition (per serving)
Calories
202.5kcal (10.13%)
Protein
3.5g (7%)
Carbs
30.5g (11.09%)
Sugars
15.5g (31%)
Healthy Fat
3.0g
Unhealthy Fat
5.5g
% Daily Value based on a 2000 calorie diet
How to make Banana Bread Crumb Mug Cake
Make the Crumb Topping
- Step 1
Mix flour, brown sugar, and cinnamon. Rub in cold butter until crumbly. Set aside.
Make the Batter
- Step 1
In a microwave-safe mug, combine flour, sugar, baking powder, salt, and cinnamon.
- Step 2
Add mashed banana, milk, melted butter, and vanilla. Stir until smooth.
Assemble
- Step 1
Sprinkle the crumb topping evenly over the batter.
Microwave
- Step 1
Cook for 60–70 seconds, depending on microwave strength. Banana keeps it very moist, so avoid overcooking.
Rest
- Step 1
Let it sit for 2 minutes to finish setting. Enjoy warm.
Want to keep this recipe for later? We can email it to you!
Nutrition (per serving)
Nutrition (per serving)
Calories
202.5kcal (10.13%)
Protein
3.5g (7%)
Carbs
30.5g (11.09%)
Sugars
15.5g (31%)
Healthy Fat
3.0g
Unhealthy Fat
5.5g
% Daily Value based on a 2000 calorie diet
Tips & Tricks
Add chocolate chips for extra sweetness.
Mix in chopped walnuts for banana-walnut bread vibes.
Add a drizzle of honey or caramel on top for extra indulgence.
Serve with a scoop of vanilla ice cream or whipped cream for added richness.
Pair with hot coffee, chai, or warm milk for a cozy treat.
FAQS
Can I make this mug cake dairy-free?
Yes, you can use plant-based milk like almond, oat, or soy milk and replace butter with coconut oil.
What if my cake turns out rubbery?
Rubbery texture is usually caused by overcooking. Reduce microwave time next time.
Can I use gluten-free flour?
Yes, you can substitute all-purpose flour with gluten-free flour, but the texture may vary slightly.
How do I prevent the cake from sinking in the middle?
Ensure the batter is mixed thoroughly and use a mug that is not too large.
Can I double the recipe?
Yes, double the ingredients and cook in two mugs or one large microwave-safe bowl. Increase microwave time to 2–2½ minutes.
Rajani
(@thegourmetschoice)
I’m Rajani, a passionate cook with over 15 years of experience creating delicious, approachable dishes. My love for food began in childhood, inspired by watching Sanjeev Kapoor’s Khana Khazana with my mom and helping her in the kitchen. On The Gourmet’s Hut, I share tried-and-tested authentic Indian recipes and quick microwave mug cake recipes perfect for busy days. My goal is to make cooking simple, flavorful, and fun—because food brings people together and every meal should create memories.
...Marnirni-apinthi Building, Lot Fourteen,
North Terrace, Adelaide, South Australia, 5000
Australia