Microwave Banana Mug Cake with Cinnamon

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

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A single-serving banana mug cake infused with warm cinnamon, ready in minutes for an instant sweet treat. This American-inspired recipe, ready in about 7 minutes, layers ripe banana, mashed, all-purpose flour, brown sugar into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 220 calories and feeds 1, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 5 min Cook: 2 min Serves 1 American cuisine 220 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a microwave-safe mug, mash 1 small ripe banana (about 1/3 cup) with a fork until mostly smooth.
  2. Step 2: Add 4 tablespoons all-purpose flour, 2 tablespoons brown sugar, 3 tablespoons milk, and 1/2 teaspoon ground cinnamon to the mug; stir well until the batter is smooth and lump-free.
  3. Step 3: Microwave the mug on high for 90 seconds, checking at 60 seconds to ensure it is rising and cooking evenly.
  4. Step 4: Let the mug cake rest for 1 minute after microwaving, then enjoy directly from the mug warm.

Frequently asked questions

How long does Microwave Banana Mug Cake with Cinnamon take to make?

Total time is about 7 minutes (5 min prep + 2 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Microwave Banana Mug Cake with Cinnamon?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Microwave Banana Mug Cake with Cinnamon?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Microwave Banana Mug Cake with Cinnamon for a different number of people?

The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Microwave Banana Mug Cake with Cinnamon?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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