3-Minute Chocolate Mug Cake
Desserts

3-Minute Chocolate Mug Cake

ML
By Marie Lefebvre · Updated September 29, 2026

A rich, fudgy chocolate mug cake ready in just 3 minutes — perfect for those late-night sweet cravings! Topped with a warm homemade chocolate sauce, this single-serve dessert is pure indulgence without the effort.

Prep⏱️ 10 min
Servings👥 1 servings
Difficulty📊 Very Easy
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🛒 Ingredients

1 servings

1
  • 1 egg
  • 2 tbsp sweetened cocoa powder
  • 3 tbsp sugar
  • 4 tbsp all-purpose flour
  • 1 tbsp neutral oil (sunflower or vegetable)
  • 1 tsp baking powder
  • 4 tbsp milk
  • Sauce: 2 tbsp sweetened cocoa powder
  • Sauce: 1 tbsp margarine or butter
  • Sauce: 1/3 cup milk

Directions

  1. 1

    Use a microwave-safe mug with at least 300 ml capacity — this prevents overflow as the batter rises during cooking.

  2. 2

    Add the egg, cocoa powder, sugar, flour, oil, baking powder, and milk directly into the mug. Stir well with a fork until the batter is completely smooth with no lumps.

  3. 3

    Microwave on full power (800–1000 W) for 3 minutes. The cake is ready when the surface is set but the center remains slightly moist for a soft, tender texture.

  4. 4

    While the cake cooks, prepare the sauce: combine cocoa powder, margarine, and milk in a small saucepan over medium heat. Stir continuously until the mixture thickens into a smooth, pourable sauce.

  5. 5

    Pour the warm sauce over the freshly cooked mug cake immediately and enjoy straight from the mug!

💡 Chef's Tip

Microwave wattages vary — start at 2 min 30 sec and check doneness before adding extra time. For a molten lava effect, press a square of dark chocolate into the center of the batter before microwaving.