Quick Microwave Mug Brownie

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A fast, fudgy chocolate brownie made in a mug with pantry staples, perfect for a single-serving sweet fix in minutes. This american-inspired desserts ready in about 7 minutes layers (30g) all-purpose flour, (50g) granulated sugar, (10g) 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 300 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 300 cal/serving
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Ingredients

Instructions

  1. Step 1: In a microwave-safe 12 oz mug, whisk together 4 tbsp (30g) all-purpose flour, 4 tbsp (50g) granulated sugar, and 2 tbsp (10g) unsweetened cocoa powder until evenly combined.
  2. Step 2: Add 2 tbsp (30ml) vegetable oil and 3 tbsp (45ml) water to the dry ingredients in the mug. Stir thoroughly until the batter is smooth and no lumps remain.
  3. Step 3: Microwave the mug brownie on high power for 60-70 seconds, watching carefully to avoid overflow. The brownie should be set but moist in the center.
  4. Step 4: Let the mug brownie cool for 2 minutes before enjoying directly from the mug or turning out onto a plate.

Frequently asked questions

How long does Quick Microwave Mug Brownie 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 Quick Microwave Mug Brownie?

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 Quick Microwave Mug Brownie?

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 Quick Microwave Mug Brownie 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 Quick Microwave Mug Brownie?

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.

Equipment for this recipe

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