Kirbie's Cravings

3 Ingredient Nutella Brownie Mug Cake

This Nutella brownie is a single serving treat that is easy to make and cooks in the microwave. It’s just like a chewy, fudgy brownie but flavored with chocolate and hazelnut spread.

photo of a Nutella Brownie Mug Cake with fresh strawberries

If you’re still looking for a dessert to make for your loved ones this weekend, I recommend my Nutella Brownie Mug Cake. It’s just 3 ingredients and cooks in the microwave. I’ve shared this recipe before, but it’s so good, I wanted to send a reminder.

This mug cake is so fantastically easy and is always such a hit when I make it. It’s chewy, fudgy, Nutella-y. It’s sure to be a great ending to your Valentine’s Day meal.

overhead photo of the cake with a spoon digging in

Don’t let the ramekins throw you off. You can’t actually make the desserts in the ramekins as the brownie rises about 2/3 in a 12 oz mug. The mug is ideal for mixing all the ingredients and for cooking the brownie. The one issue with this recipe is that it’s not the prettiest thing when it’s done. Unlike my traditional mug cakes, this doesn’t have a smooth cake surface. It actually looks quite blotchy and cracked when it’s finished. I actually did tinker with the recipe and made ones that looked prettier, but they just didn’t have that super chewy and fudgy texture anymore.

So I scooped it out and plated it in ramekins and topped with with some powdered sugar and strawberries to hide the imperfections. I may have eaten a couple bites from each brownie to make them fit into the ramekins. You know, for taste testing purposes.

Since I’m doing a Valentine’s Day theme here, I adjusted this recipe to make two brownie cakes. And I attempted to top them with heart-shaped strawberries slices. (Side note. why is it that when you actually need heart-shaped strawberry slices, none of them are coming out that way and when you don”t need them, you get so many that are?)
close-up photo of the cake
If you really want to kick it up a notch, you can top it with ice cream and fudge sauce and make a whole brownie sundae out of it.

(P.S. If you enjoy this mug cake, it’s featured in my 5-Minute Mug Cakes book.)

Recipe now updated with video! Please note, I only made one brownie for the video but the recipe below is for two. You can easily make one by halving all the ingredients. You can find all my recipe videos on my youtube page.

3 Ingredient Nutella Brownie Mug Cake

Servings: 2
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Course: Dessert
Cuisine: American
A Nutella brownie that is just 3 ingredients and cooks in the microwave.
5 from 1 vote


  • 1/2 cup + 2 tbsp Nutella
  • 1 large egg gently whisked
  • tbsp all purpose flour


  • The directions here are for making 2 mug cakes. You can easily halve the recipe if you just want to make one. Split the whisked egg evenly into two oversized microwave safe mugs (approximately 2 tbsp of whisked egg per mug). I used 12 oz mugs.
  • Add 1/4 cup + 1 tbsp of Nutella into each mug. Add 2 tbsp of flour into each mug. Mix with a sturdy whisk until batter is smooth. Batter will be very thick, so you will need to exert some power in your whisking. 
  • Microwave each mug separately for about 1 minute. Allow the brownie to cool slightly before eating. If you want an extra chewy brownie texture, allow the brownie to fully cool (about 20-30 minutes). For a nicer presentation, I recommend removing cake from mug and placing into a smaller plate or ramekin and then topping with powdered sugar, fruit, or ice cream on top.

The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.

Did you make this recipe?I'd love to see it! Mention @KirbieCravings and tag #kirbiecravings!

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42 comments on “3 Ingredient Nutella Brownie Mug Cake”

  1. Delicious!!!!

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