Funfetti Chocolate Mug Cake

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A single-serve chocolate cake that magically transforms with rainbow sprinkles, baked in a mug for instant, joyful indulgence. This american-inspired desserts ready in about 6 minutes layers all-purpose flour, sugar, 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 250 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.

★ 3.5 (10 ratings) Prep: 5 min Cook: 1 min Serves 1 American cuisine 250 cal/serving
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Ingredients

Instructions

  1. Step 1: In a microwave-safe mug, combine 3 tbsp all-purpose flour, 2 tbsp sugar, 2 tbsp cocoa powder, and 1/4 tsp baking powder, whisking until no lumps remain.
  2. Step 2: Add 3 tbsp milk, 1 tbsp vegetable oil, and 1/4 tsp vanilla extract, stirring until a smooth batter forms with no dry pockets.
  3. Step 3: Gently fold in 2 tbsp rainbow sprinkles, ensuring even distribution without crushing them.
  4. Step 4: Microwave on high for 1 minute 15 seconds until the edges are set but the center still jiggles slightly. Let stand for 1 minute before eating to allow the cake to set.

Equipment for this recipe

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Frequently asked questions

How long does Funfetti Chocolate Mug Cake take to make?

Total time is about 6 minutes (5 min prep + 1 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 Funfetti Chocolate 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 Funfetti Chocolate 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 Funfetti Chocolate 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 Funfetti Chocolate 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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