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Banana Bread Mug Cake (5 Minutes)

Alright, let me tell you—this banana bread mug cake is like a warm hug in dessert form. Picture this: a cozy afternoon, the smell of ripe bananas and cinnamon teasing your nose, and just five minutes to whip up something sweet and satisfying. I love this little kitchen hack because it’s perfect when you’re craving banana bread but don’t want to commit to a whole loaf. Plus, it’s sweet, slightly moist, and has those comforting banana notes with just a hint of spice. Trust me, once you try it, you’ll keep it in your quick-treat arsenal forever!

Quick Facts

Yield: Serves 1
Prep Time: 2 minutes
Cook Time: 3 minutes
Total Time: 5 minutes

Ingredients

For the Main Dish:

⅓ cup all-purpose flour
2 tbsp granulated sugar
¼ tsp baking powder
⅛ tsp ground cinnamon
A pinch of salt
1 small ripe banana (about ⅓ cup mashed)
2 tbsp milk (any kind)
1 tbsp vegetable oil or melted butter
¼ tsp vanilla extract

How I Make It

Step 1:

Start by mashing your ripe banana right in the mug using a fork until it’s mostly smooth with just a few small lumps—that’s what gives it charm and texture.

Step 2:

Add the flour, sugar, baking powder, cinnamon, and salt directly into the mug. Give it a quick stir so the dry ingredients begin to mix evenly with the banana.

Step 3:

Pour in the milk, vegetable oil, and vanilla extract, then stir everything together until you have a thick, smooth batter. Make sure there aren’t any big flour pockets hiding at the bottom.

Step 4:

Pop the mug into the microwave and cook on high for about 90 to 120 seconds. Keep an eye on it—every microwave is different! The cake should spring back to the touch but still feel moist.

Step 5:

Let it cool for a minute or two (this is key since it continues cooking slightly and becomes less hot). You can add a pat of butter on top or a drizzle of honey if you want to get fancy.

Step 6:

Dive in with a spoon and enjoy your personal banana bread fix—ooey, soft, and perfectly sweet.

Variations & Tips

Swap out half the flour for whole wheat for a nuttier flavor and extra fiber.
Mix in a handful of chocolate chips or chopped nuts to the batter for extra texture.
Use almond milk or oat milk for a dairy-free option without sacrifice.
If your mug cake is dry, add 1 tbsp of Greek yogurt or applesauce next time to boost moisture.
Microwave times vary—start with 90 seconds, then add 10-second bursts if needed to avoid overcooking.

How I Like to Serve It

I love serving this banana bread mug cake with a scoop of vanilla ice cream or a dollop of whipped cream for that extra indulgence. On chilly mornings, it pairs beautifully with a steaming cup of coffee or chai tea. And if you’re feeling extra cozy, a sprinkle of toasted nuts or a drizzle of maple syrup makes it feel like a special Sunday treat.

Notes

Store leftover batter (if you want) in the fridge for up to a day, but fresh is best!
Reheat leftovers in the microwave for 20 seconds to enjoy warm again.

Closing: This banana bread mug cake always hits that sweet spot of quick, cozy, and delicious—perfect for whenever you need a little homemade comfort in a flash.