← BlogJune 28, 2026

How to Make the Perfect Fudgy Nutella Mug Cake

American · Easy · 4 min · 1 servings

vegetarian
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This fudgy Nutella mug cake is ready in just minutes thanks to the magic of your microwave. The hazelnut chocolate spread creates an incredibly dense and gooey cake with minimal ingredients.

Why this recipe works

This Fudgy Nutella Mug Cake recipe has been crafted to deliver restaurant-quality results in your home kitchen. At just 4 minutes from start to finish, it fits perfectly into a busy schedule without sacrificing flavor. Each serving comes in at 420 calories with 8g of protein, making it a balanced choice for any meal.

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What you will need

This recipe uses 5 simple ingredients that you can find at any grocery store:

  • 3 tbsp Nutella
  • 1 large egg
  • 2 tbsp all-purpose flour
  • 1 tbsp unsweetened cocoa powder
  • 1 tbsp powdered sugar

Step by step instructions

Step 1: Combine Base Ingredients

Spoon the Nutella into a large microwave-safe mug and crack in the egg, then stir vigorously until the mixture is completely smooth.

Step 2: Add Dry Ingredients

Add the flour, cocoa powder, and powdered sugar to the mug and stir until a thick, uniform batter forms.

Step 3: Microwave the Cake

Microwave on high for 60 to 75 seconds until the top is just set and the edges have pulled slightly from the sides of the mug.

Step 4: Rest and Enjoy

Allow the mug cake to rest for 30 seconds as it continues to cook slightly from residual heat, then enjoy straight from the mug.

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Easy substitutions

Missing an ingredient? Here are some swaps that work perfectly:

  • Nutella → any chocolate hazelnut spread or peanut butter chocolate spread
  • all-purpose flour → almond flour for a denser gluten-free version

Common mistakes to avoid

Watch out for these pitfalls that can affect your results:

  • Not mixing the egg thoroughly into the Nutella creates uneven streaks in the finished cake
  • Cooking at full power for too long makes the cake rubbery instead of fudgy

Nutrition facts

Per serving: 420 calories, 8g protein, 48g carbs, 22g fat, 2g fiber.

Ready to cook?

Get the interactive recipe with adjustable servings, built-in timers, and ingredient checklist.

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