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The Moistest Chocolate Mug Cake (Microwave Recipe)

Close-up of a moist chocolate chip mug cake topped with melted chocolate chips inside a white mug.

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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 recipe delivers rich chocolate flavor in under five minutes.

Ingredients

Scale
  • 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, about 10 to 12 ounces in size.
  2. Add the flour, sugar, cocoa powder, baking powder, and salt directly into the mug. Use a small whisk or fork to mix these dry ingredients thoroughly until no lumps remain.
  3. Add the milk, vegetable oil, and vanilla extract to the dry mixture in the mug.
  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 gently into the top of the batter.
  6. Microwave on high power for 60 to 90 seconds. Cooking time varies based on microwave wattage. Start with 60 seconds and check for doneness. The cake should look set on top but still slightly soft in the center for a moist texture.
  7. Let the mug cake cool for one minute before eating directly from the mug.

Notes

  • For a richer flavor, substitute the vegetable oil with melted butter.
  • If your microwave is very powerful (over 1000 watts), start checking the cake at 50 seconds to prevent it from becoming dry.
  • Top with a scoop of vanilla ice cream or a dusting of powdered sugar for an instant upgrade.

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