Chocolate Chunk Banana Bread Mug Cake

Chocolate Chunk Banana Bread Mug Cake is a quick, cozy, single-serving dessert that brings all the flavor of classic banana bread with the indulgent addition of melty chocolate chunks. Made in the microwave in just a few minutes, this mug cake is moist, sweet, and comforting—perfect for satisfying your banana bread cravings without turning on the oven.

Why You’ll Love This Recipe

This mug cake is warm, gooey, and full of rich banana flavor with pockets of melted chocolate in every bite. It’s perfect for when you want a quick treat with minimal cleanup. No fancy equipment or baking skills needed—just a mug, a spoon, and a microwave. It’s also easy to customize, whether you want to make it gluten-free, vegan, or add nuts or spices.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

• Ripe banana (mashed)
• All-purpose flour
• Brown sugar or maple syrup
• Baking powder
• Pinch of salt
• Milk (dairy or non-dairy)
• Neutral oil or melted butter
• Vanilla extract
• Chocolate chunks or chips
• Optional: cinnamon, chopped nuts, or a pinch of espresso powder for depth

directions

1. In a microwave-safe mug, mash the banana until smooth.
2. Add flour, sugar, baking powder, salt, milk, oil, and vanilla extract. Stir until just combined.
3. Fold in most of the chocolate chunks, reserving a few for topping.
4. Microwave on high for 1 minute to 1 minute 20 seconds, or until the cake is just set on top. Microwave times may vary—watch closely.
5. Let sit for 1–2 minutes to cool slightly. Top with remaining chocolate and enjoy warm.

Servings and timing

Serves: 1
Prep time: 5 minutes
Cook time: 1–1.5 minutes
Total time: approx. 6–7 minutes

Variations

• Make it gluten-free by using a 1:1 gluten-free flour blend.
• Use peanut butter or almond butter in place of oil for extra flavor.
• Add chopped walnuts or pecans for crunch.
• Use mini chocolate chips for even chocolate distribution.
• Add a dash of cinnamon or nutmeg for a spiced version.

storage/reheating

This mug cake is best enjoyed fresh. If needed, cover and refrigerate for up to 1 day. Reheat in the microwave for 15–20 seconds. Avoid freezing, as the texture changes significantly.

FAQs

Can I use overripe bananas?

Yes—overripe bananas are ideal. They’re sweeter and mash more easily for better texture and flavor.

What size mug should I use?

Use a 10–12 oz microwave-safe mug to avoid overflow during cooking.

Can I make this without chocolate?

Absolutely. It’s still delicious plain, or you can add dried fruit or nuts instead.

Is it vegan?

It can be made vegan by using plant-based milk and oil, and skipping dairy-based chocolate.

How do I know when it’s done?

The top should look set and not wet. If unsure, gently press the center—if it springs back, it’s done.

Can I bake this in the oven?

Yes, bake at 350°F (175°C) in an oven-safe ramekin for about 12–15 minutes.

Can I double the recipe?

You can, but it’s best to make individual mugs for even cooking. Doubling in one mug may result in undercooked centers.

Why did my mug cake come out dry?

Overcooking can dry it out. Start with 1 minute, then microwave in 10-second intervals as needed.

Can I use whole wheat flour?

Yes, though it may be slightly denser. Consider mixing half with all-purpose flour.

What type of chocolate works best?

Roughly chopped dark or semi-sweet chocolate bars melt better than chips and give gooey pockets throughout.

Conclusion

The Chocolate Chunk Banana Bread Mug Cake is your go-to solution for when you need something sweet, fast, and homemade. With just a few simple ingredients and a microwave, you’ll have a warm, decadent dessert ready in minutes. Whether it’s a late-night craving or a quick afternoon pick-me-up, this mug cake delivers big flavor with minimal effort.

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