• 1 Prepare the mug

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  Use a microwave-safe mug that holds at least 300 ml. Lightly grease the inside if desired.

• 2 Prepare the apple

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  Dice the apple into small pieces so it cooks evenly in the mug cake.

• 3 Mix the dry ingredients

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  In the mug, combine the flour, brown sugar, baking powder, cinnamon, and salt.

• 4 Add the wet ingredients

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  Add the milk, melted butter, and vanilla extract. Stir until the batter is smooth and no dry flour remains.

• 5 Add the apple

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  Fold the diced apple into the batter, making sure the pieces are evenly distributed.

• 6 Microwave

  1m

  Microwave on high for 60-90 seconds. Start checking at 60 seconds. The cake is done when it has risen and the center looks set.

• 7 Rest and serve

  2m

  Let the mug cake rest for 1-2 minutes before eating, as it will be very hot.

Use a large mug to prevent overflow. Dice the apple small so it softens quickly. Microwave times can vary, so start checking after 60 seconds and avoid overcooking, as the cake will continue to set while resting.