Make this easy 3-ingredient Nutella mug cake when you're in need of a quick & easy sweet treat. This single-serve dessert comes together in under 5 minutes in the microwave.
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Why You'll Love This Recipe
We've all been there: it's 9:00 PM, the kids are finally in bed, and that chocolate craving hits hard. You don't want to wait 30 minutes for the oven to preheat, and you definitely don't want a sink full of dishes. Enter: Nutella Mug Cake.
This is my go-to "emergency dessert" because it's naturally egg-free and uses a clever shortcut - chocolate cake mix - to keep things so incredibly moist and foolproof. While I love a more complicated dessert (like my Chocolate Tres Leches), sometimes you just need a single-serve treat that's ready faster than you can find the remote.
If you're a fan of my quick Ninja Creami sorbet or other easy no-bake cookies, you know I'm obsessed with high-reward, low-effort sweets. This Nutella cake is right up there with those, featuring a warm, gooey center that feels way fancier than a five-minute microwave recipe has any right to be.
If you're looking for the ultimate "I need chocolate right now" solution, this is it. Here is why this sweet treat is about to become your new late-night best friend!
Why Mug Cakes with Cake Mix Work
This Nutella mug cake works because chocolate cake mix already has that perfect balance of flour, sugar, and leavening to bake up fast in the microwave.
Milk hydrates the dry mix quickly, while Nutella adds just enough fat to keep everything soft and fudgy. There's a second spoonful of Nutella that doesn't get stirred in - it stays right in the center and melts into that great, gooey middle as it cooks.
Ingredient Notes
(See recipe card at the bottom of the post for exact ingredient measurements.)
- Chocolate Cake Mix: My favorite "semi-homemade" hack! It replaces the flour, sugar, and baking powder in one step. I keep a bag in my pantry specifically for these single-serve cravings.
- Nutella: This provides the fat and flavor needed for a moist crumb. You'll use it twice: stirred into the batter and dropped as a dollop in the center for that molten lava core.
- Milk: This hydrates the dry mix. I recommend whole milk for the richest flavor, but you can easily swap in oat or almond milk if you prefer a dairy-free option.
Additions & Toppings
- Feel free to mix about 2 tablespoon of add-ins in your cake batter. If you can dream it up, you can add it; a few favorites are chocolate chips, nuts, peanut butter chips, or coconut flakes for a nice texture element.
- A few of my favorite toppings for this cake...
- Vanilla ice cream
- Whipped cream
- Fresh fruit (raspberries, strawberries, or bananas are great with this cake!)
- More Nutella
- Caramel or hot fudge
- Mini chocolate chips
Need more recipes for that chocolate fix? 🍫 Try my Brownie Dump Cake or these Brownie Cake Pops!
The Secret "Water Trick" for Moist Mug Cakes
If you've ever had a microwave mug cake turn out like a dry sponge, this trick is a total game-changer! Microwaves are notorious for zapping the moisture out of small batters, but you can prevent that with a simple "steam buddy."
- The Hack: Fill a small, microwave-safe shot glass or ramekin with an inch of water.
- The Method: Place the water glass on the microwave turntable right next to your mug cake.
- The Result: The water creates steam as the cake cooks, acting like a mini "steam oven." This prevents a rubbery skin from forming on the top and keeps the crumb incredibly soft and fudgy.
How to Make 3-Ingredient Nutella Mug Cake
- Whisk the Base: In a standard 12 oz microwave-safe mug, combine the cake mix, 1 tablespoon of Nutella, and the milk. Whisk with a small fork until the batter is completely smooth and no dry pockets remain at the bottom.
- Create the Lava Center: Spoon the remaining tablespoon of Nutella directly into the center of the batter. Do not stir it in! This dollop will sink slightly as it cooks, creating that signature gooey "lava" core.
- The "Water Trick" Hack: For the most moist cake, place a small microwave-safe shot glass or ramekin filled with an inch of water on the turntable right next to your mug. This creates a "steam oven" effect that prevents the cake from drying out.
- The Microwave "Sweet Spot": Microwave on high for 60 seconds.
- Pro Tip: Every microwave is different. The cake is done when the top looks "set" (not liquid) but still slightly shiny. If it needs more time, go in 5-second increments to avoid overcooking.
- The Crucial Rest: Let the mug sit in the microwave for 1-2 minutes before grabbing it. This allows the "carry-over" heat to finish the crumb without drying it out and prevents you from burning your tongue on the molten center!
Step-by-Step Recipe Video
How to Serve & Store
SERVING: I like to let my mug cake cool for a minute or two before serving. Top with your favorite ice cream or whipped cream...you can even add a little bit of extra Nutella to the top! Enjoy it within 5-10 minutes of microwaving.
STORAGE: This microwave Nutella mug cake is best enjoyed fresh, like most single-serve mug cakes; they tend to get kind of rubbery after 30 minutes or so, especially if you try to reheat. Just make it from scratch next time you have a craving.
Leslie's Helpful Tips & Tricks
- Microwave wattages vary, so you may need to adjust cook time by up to 15 seconds. This recipe has been tested in standard 1000W microwaves for consistent results. Start at 60 seconds - if it's rubbery, it's overcooked; if it's still liquidy, it needs more time.
- If you're making multiple mug cakes, microwave them one at a time. I've tried cooking more than one together, and it always messes up the cook time.
- It's important to make sure your mug is microwave-safe before making your cake! Most mugs are, but it never hurts to check.
- Make sure your mug is big enough for the cake. You can typically expect the cake batter to double in volume, so the batter should take up no more than half the mug.
FAQs & Troubleshooting
More Quick Microwave Mug Cakes
I can't wait to see what you think of this easy sweet treat! 🍫 If you give it a try, I'd love to hear your thoughts; leave a comment and review below!
3-Ingredient Nutella Mug Cake (No Egg)
Ingredients
- 6 tablespoon chocolate cake mix
- 2 tablespoon Nutella (divided)
- ¼ cup milk
Instructions
- In a 12 oz microwave-safe mug, whisk 6 tablespoon chocolate cake mix, 1 tablespoon Nutella, and ¼ cup milk until smooth, scraping the bottom corners to remove any dry pockets.
- Spoon the remaining 1 tablespoon of Nutella into the center of the batter; do not stir to ensure a gooey lava core.
- Place a small microwave-safe shot glass filled with an inch of water on the turntable next to your mug to create a "steam oven" and prevent a rubbery texture.
- Microwave on high for 60 seconds until the top looks set but slightly springy. If needed, add time in 5-second increments to avoid overcooking.
- Let the cake rest in the microwave for 1-2 minutes to allow the crumb to finish setting and the molten center to cool slightly before serving.
Notes
- Mug Size: Use a 12 oz mug or larger; the batter doubles in volume and may overflow in smaller cups.
- The "Water Trick": Placing a small glass of water next to the mug during cooking creates steam, ensuring a moist, fudgy cake.
- Avoid Overcooking: Stop when the top is set but springy. Overcooking can lead to a rubbery texture; the cake finishes "setting" during the rest.
- The 2-Minute Rest: This is really important for the cake to finish cooking and for the molten Nutella center to cool to a safe temperature.
- Substitutions: Any standard chocolate cake mix works. For dietary needs, swap in gluten-free mix or use oat/almond milk as a 1:1 replacement.
- Serve Immediately: Mug cakes are best enjoyed warm. Leftovers usually get a little dense/rubbery and are not recommended for reheating.
Nutrition Facts
Leslie Lambert is a lifestyle writer and content creator specializing in home organization, family recipes, and intentional living. With 17 years of experience in blogging and digital storytelling, she helps busy women create calm, purposeful homes they love.
