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The Moistest Chocolate Mug Cake (Microwave)

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

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Make this single serving chocolate mug cake in your microwave for a quick, gooey dessert that avoids the spongy texture of typical microwave cakes. This easy mug recipe is ready in minutes.

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 gooey center)

Instructions

  1. Select a microwave-safe mug that holds at least 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 thoroughly until no clumps remain.
  3. Add the milk, vegetable oil, and vanilla extract to the dry mixture.
  4. Stir everything together until just combined. Do not overmix; a few small lumps are acceptable.
  5. If using, stir in the chocolate chips or press them into the top of the batter.
  6. Place the mug in the microwave. Cook on high power for 60 to 90 seconds. Cooking time varies based on microwave wattage. Start checking at 60 seconds.
  7. The cake is done when the top looks set but the center is still slightly soft. Be careful not to overcook, which causes sponginess.
  8. Let the mug cake cool in the mug for at least one minute before eating directly from the mug.

Notes

  • For a richer flavor, substitute the vegetable oil with melted butter.
  • If you want a lava cake effect, place one square of dark chocolate in the center of the batter before microwaving.
  • This recipe makes one serving, perfect for a dessert for one.

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