One-Bowl Chocolate Fudge Mug Cake

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

A quick and moist chocolate fudge cake made in a mug, ready in under 5 minutes for instant indulgence. This american-inspired desserts ready in about 5 minutes layers all-purpose flour, granulated sugar, unsweetened cocoa powder 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 320 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: 3 min Cook: 2 min Serves 1 American cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a microwave-safe mug, whisk together 4 tbsp all-purpose flour, 4 tbsp granulated sugar, 2 tbsp unsweetened cocoa powder, and 1/4 tsp baking powder until evenly combined.
  2. Step 2: Add 3 tbsp milk, 2 tbsp vegetable oil, and 1/4 tsp vanilla extract to the dry ingredients in the mug. Stir well until smooth and no lumps remain.
  3. Step 3: Fold in 2 tbsp semi-sweet chocolate chips evenly throughout the batter. Microwave the mug on high for 90 seconds to 2 minutes until the cake has risen and is set but still moist.
  4. Step 4: Let the cake cool for 2 minutes before enjoying directly from the mug.

Frequently asked questions

How long does One-Bowl Chocolate Fudge Mug Cake take to make?

Total time is about 5 minutes (3 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 One-Bowl Chocolate Fudge Mug Cake?

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 One-Bowl Chocolate Fudge Mug Cake?

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 One-Bowl Chocolate Fudge Mug Cake 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 One-Bowl Chocolate Fudge Mug Cake?

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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