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A rich chocolate mug cake baked in a white ceramic mug showing a soft crumb structure.

Chocolate Mug Cake


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5 from 9 reviews

Description

This precise, single-serving chocolate mug cake uses a balanced ratio of lipids and starches to achieve a tender, bakery-quality crumb in under two minutes. By weighing ingredients and carefully controlling microwave heat, you can enjoy a rich, molten-centered dessert with perfect structural integrity.


Ingredients

  • All-purpose flour
  • White sugar
  • Cocoa powder
  • Baking powder
  • Pinch of salt
  • Full-fat milk
  • Instant coffee granules
  • Vanilla extract
  • Unflavoured vegetable oil
  • Dark chocolate chunks


Instructions

  1. Whisk dry components. Combine flour, sugar, cocoa powder, baking powder, and salt in a microwave-safe mug until uniform and free of lumps.
  2. Hydrate the coffee. Stir instant coffee into the milk in a separate small vessel until completely dissolved and smooth.
  3. Combine wet ingredients. Pour the coffee-milk mixture, vanilla, and vegetable oil into the mug, stirring gently until just combined.
  4. Microwave the cake. Press dark chocolate chunks into the batter and microwave on high for 60 seconds until the cake rises and sets.
  5. Rest and serve. Test the center with a skewer for doneness, then allow the cake to rest for two minutes before eating.

Notes

  • Use a 350-milliliter mug with straight vertical walls for the most uniform heat distribution.
  • Avoid overmixing the batter to prevent the development of a tough, rubbery gluten network.
  • Stop the microwave the moment the surface of the cake loses its wet sheen to prevent drying.
  • Ensure your vegetable oil is at room temperature to facilitate a stable emulsion with the milk.
  • Prep Time: 4 mins
  • Cook Time: 1 min
  • Category: Dessert
  • Method: Microwave
  • Cuisine: Modern American