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The Moistest Chocolate Mug Cake (Microwave Recipe)

Close-up of a moist chocolate mug cake topped with melted chocolate chips, ready to eat.

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You need a quick dessert? This chocolate mug cake recipe delivers a rich, gooey, single-serving cake cooked in the microwave in under five minutes. It is the easiest instant dessert you will make.

Ingredients

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  • 4 Tablespoons all-purpose flour
  • 4 Tablespoons granulated sugar
  • 2 Tablespoons unsweetened cocoa powder
  • 1/4 teaspoon baking powder
  • Pinch of salt
  • 3 Tablespoons milk (any kind)
  • 1 Tablespoon vegetable oil
  • 1/4 teaspoon vanilla extract
  • 1 Tablespoon chocolate chips (optional, for extra gooeyness)

Instructions

  1. Find a standard, microwave-safe mug (about 10-12 ounces).
  2. Add the flour, sugar, cocoa powder, baking powder, and salt directly into the mug. Use a small fork to mix these dry ingredients well until no clumps remain.
  3. Pour in the milk, vegetable oil, and vanilla extract.
  4. Mix everything thoroughly with the fork until you have a smooth batter. Make sure you scrape the bottom corners of the mug to incorporate all the dry mix.
  5. If you are using them, stir in the chocolate chips now.
  6. Place the mug in the microwave. Cook on high power for 60 to 90 seconds. Cooking time varies based on your microwave wattage. Start with 60 seconds.
  7. Check the cake; it should look set on top but still slightly moist in the center for the best texture. If it looks wet, microwave in 10-second increments until done. Do not overcook, or it will become spongy.
  8. Let the mug cake cool for one minute before eating directly from the mug.

Notes

  • For an even richer, lava-like center, drop one square of dark chocolate into the center of the batter before microwaving.
  • If you want a vanilla mug cake, substitute the cocoa powder with 4 extra Tablespoons of flour and add 1/4 teaspoon extra vanilla extract.
  • This recipe is perfect for a dessert for one, but you can easily double the ingredients and cook in two separate mugs.

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