Banana Mug Cake for One

We love this banana mug cake for one when we need a quick dessert or an easy breakfast idea. This single-serve mug cake is perfectly portion-controlled and delivers all the flavor of a banana chocolate chip muffin without the fuss of baking a whole batch.

Overview

Single-serve desserts are ideal for busy mornings, after-dinner cravings, or when you live alone and want a freshly baked treat without leftovers. This banana mug cake tastes just like a bakery-style banana chocolate chip muffin, but it’s made in a mug and serves one person. It’s quick to prepare, easy to customize, and cooks in the microwave or oven depending on the texture you prefer.

Banana Mug Cake Ingredients

Gather these simple ingredients. Small substitutions are noted to help you adapt the recipe based on what you have on hand.

• 2 tablespoons mashed banana — ripe bananas work best for sweetness and moisture. If you prefer, substitute with pumpkin puree or applesauce for a different flavor.
• 1 large egg — acts as a binder and gives structure; for a vegan option, try a flax egg (1 tablespoon ground flax + 3 tablespoons water, chilled).
• 1/2 tablespoon butter, melted — coconut oil or a neutral oil works well as a dairy-free alternative.
• 2 tablespoons white whole wheat flour — you can use all-purpose flour or a gluten-free all-purpose flour blend if needed.
• 1/8 teaspoon baking powder — a small amount helps the cake rise just enough for a tender crumb.
• 1/4 teaspoon ground cinnamon — optional, but adds warm flavor; swap with a pinch of chai spice if you like.
• 1 teaspoon coconut sugar (or brown sugar) — any granulated sugar will work; adjust to taste based on banana ripeness.
• 1 tablespoon mini chocolate chips — optional but recommended for a classic banana-chocolate treat.

Use a medium or large microwave-safe mug or a small oven-safe bowl. If you plan to bake in the oven, choose a ramekin or oven-safe dish that will allow the cake to rise slightly without overflowing.

How to Make a Mug Cake

Making this banana mug cake is fast and simple — total hands-on time is about five minutes. Below are clear steps for mixing, cooking, and serving. Choose the microwave method for speed or the oven method for a more traditional muffin-like texture.

1. Mix

Lightly grease your mug or baking dish with nonstick spray, butter, or oil. In the mug (or mix in a separate bowl for easier cleanup and a neater presentation), mash the banana with a fork until mostly smooth. Add the egg and whisk until combined. Stir in the melted butter, then fold in the flour, baking powder, cinnamon, and sugar. Finally, mix in the chocolate chips, reserving a few to sprinkle on top if desired.

Tip: Mixing in a separate bowl makes it easier to ensure even distribution of ingredients and helps keep your mug clean.

2. Cook

Choose your cooking method based on texture and time:

• Microwave: Cook on high for 60–90 seconds. Microwaves vary, so start at 60 seconds and add additional time in 10–15 second increments if needed. The cake should be set but still moist.
• Oven: Preheat to 350°F (175°C) and bake for 22–25 minutes for a more muffin-like texture. Use a small ramekin or oven-safe mug and check doneness with a toothpick; it should come out with a few moist crumbs, not raw batter.

3. Eat

Enjoy the mug cake immediately for the best texture and flavor. Optionally top with a few extra chocolate chips, a drizzle of nut butter, a dusting of powdered sugar, or a spoonful of yogurt or whipped cream.

Banana Mug Cake Recipe

A quick single-serve banana mug cake that’s ready in about 90 seconds in the microwave and delivers the flavor of a bakery-style banana chocolate chip muffin.

Author

Lee Funke

Prep & Cook Time

• Prep: 5 minutes
• Microwave cook: 1 minute
• Oven bake: 22–25 minutes
• Total: ~6 minutes (microwave method)
• Servings: 1

Ingredients

Wet

• 2 tablespoons mashed banana
• 1 large egg
• 1/2 tablespoon butter, melted (or coconut oil)

Dry

• 2 tablespoons white whole wheat flour (or all-purpose / gluten-free blend)
• 1/8 teaspoon baking powder
• 1/4 teaspoon ground cinnamon
• 1 teaspoon coconut sugar (or brown sugar)
• 1 tablespoon mini chocolate chips

Instructions

1. Grease a medium/large microwave-safe mug or a small oven-safe bowl.
2. Add the mashed banana, egg, and melted butter to the mug and whisk together until smooth.
3. Stir in the flour, baking powder, cinnamon, and sugar until combined. Fold in the chocolate chips.
4. Microwave: Cook on high for 60–90 seconds, checking at 60 seconds. Oven: Bake at 350°F (175°C) for 22–25 minutes.
5. Allow to cool briefly, then enjoy straight from the mug.

Tips & Notes

• Ripe bananas add natural sweetness and moisture—if your banana is underripe, adjust the sugar to taste.
• For a vegan version, replace the egg with a flax or chia egg and use melted coconut oil instead of butter.
• The microwave yields a denser, moist cake; baking in the oven results in a lighter, more muffin-like texture.
• Mixing in a separate bowl helps ensure even ingredients and easier cleanup.

Nutrition (approximate)

Calories: 302 kcal • Carbohydrates: 35 g • Protein: 9 g • Fat: 15 g • Fiber: 4 g • Sugar: 20 g

Nutrition information is automatically calculated and should be used as an approximation.

More Mug Cake Ideas

If you enjoy this single-serve banana mug cake, try variations like pumpkin mug cake, coconut flour mug cake, or a keto-friendly mug cake to fit different dietary preferences.

Final Notes

This banana mug cake is an easy, satisfying way to enjoy a freshly baked treat without committing to a full batch of muffins. It’s flexible, quick, and perfect for anyone who wants dessert or a cozy breakfast in minutes.