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The Best Chocolate Mug Cake Recipe

4.6 from 128 reviews

This delightful chocolate mug cake is a quick and easy single-serving dessert that you can prepare in just a few minutes. Combining all-purpose flour, cocoa powder, and a touch of sugar with milk and vegetable oil, it produces a moist, rich cake with a gooey hazelnut chocolate center—all made conveniently in the microwave. Perfect for satisfying chocolate cravings without the fuss of baking a whole cake.

Ingredients

Scale

Dry Ingredients

  • 1/4 cup all-purpose flour
  • 2 tablespoon unsweetened cocoa powder
  • 1/4 teaspoon baking powder
  • 2 tablespoon granulated sugar (add 1 tablespoon more for extra sweetness if desired)
  • 1/8 teaspoon kosher salt

Wet Ingredients

  • 1/4 cup + 1 tablespoon milk
  • 2 tablespoon vegetable oil

Add-ins

  • 1 tablespoon hazelnut chocolate spread or mini chocolate chips

Instructions

  1. Mix Dry Ingredients: In a medium-sized bowl, whisk together the all-purpose flour, unsweetened cocoa powder, baking powder, granulated sugar, and kosher salt until well combined and free of lumps.
  2. Add Wet Ingredients: Whisk in the milk and vegetable oil into the dry mixture until you have a smooth batter with no clumps. Make sure the ingredients are fully incorporated but do not overmix.
  3. Prepare the Mug: Pour the batter into a microwave-safe mug with a capacity of at least 14 ounces, leaving enough space at the top for the cake to rise without spilling over.
  4. Add Chocolate Center: Drop one tablespoon of hazelnut chocolate spread or mini chocolate chips into the center of the batter. There is no need to push it down as it will sink in naturally during cooking.
  5. Set Up for Microwaving: Place a paper towel inside the microwave and set your mug on top to catch any overflow from rising batter during cooking.
  6. Microwave the Cake: Cook the mug cake on high power for 70 seconds. Depending on your microwave wattage, you may need to adjust the time slightly. Avoid overcooking to maintain moistness.
  7. Serve and Enjoy: Carefully remove the mug from the microwave (it will be hot!) and enjoy your warm, rich chocolate mug cake immediately.

Notes

  • Microwave wattages vary; if your mug cake is undercooked, add extra cooking time in 10-second increments until done.
  • Do not overcook the cake as it can become dry and rubbery.
  • You can substitute hazelnut chocolate spread with mini chocolate chips or your favorite chocolate spread.
  • Use a microwave-safe mug with enough capacity to allow the cake to expand while cooking.
  • If you prefer a sweeter cake, increase sugar by one tablespoon.
  • Be cautious when removing the mug as it will be hot.

Keywords: chocolate mug cake, quick dessert, microwave cake, single serving chocolate cake, easy chocolate dessert