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The 5-Minute Fudgy Chocolate Mug Cake (Moist, No Eggs)

Close-up of a rich, dark chocolate mug cake baked perfectly inside a white ceramic mug.

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Make this rich, fudgy chocolate mug cake in under five minutes using your microwave. This single-serving cake is the perfect quick dessert for instant gratification and satisfies late-night cravings without needing an oven.

Ingredients

Scale
  • 4 Tbsp all-purpose flour
  • 4 Tbsp granulated sugar
  • 2 Tbsp unsweetened cocoa powder
  • 1/4 tsp baking soda
  • Pinch of salt
  • 3 Tbsp milk (dairy or non-dairy)
  • 1 Tbsp vegetable oil
  • 1/4 tsp vanilla extract
  • 1 Tbsp chocolate chips (optional, for extra fudginess)

Instructions

  1. Select a microwave-safe mug that holds at least 10-12 ounces.
  2. Add the dry ingredients directly into the mug: flour, sugar, cocoa powder, baking soda, and salt. Use a small fork to mix these thoroughly until no clumps remain.
  3. Pour in the wet ingredients: milk, vegetable oil, and vanilla extract.
  4. Mix everything together inside the mug until just combined. Do not overmix; a few small lumps are acceptable.
  5. Stir in the chocolate chips, if using.
  6. Place the mug in the microwave. Cook on high power for 60 to 90 seconds. Start with 60 seconds and check the center. If it still looks very wet, microwave in 10-second intervals until the top is set but the center remains moist.
  7. Let the mug cake cool for one minute before eating directly from the mug.

Notes

  • For a fudgier texture, slightly undercook the cake. It will continue to set as it cools.
  • If you prefer a cake without eggs, this recipe uses baking soda for lift and requires no egg.
  • If you want a richer flavor, substitute the vegetable oil with melted butter.
  • This recipe makes one serving, perfect for a dessert for one.

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