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Lemon Mug Cake

This lemon mug cake is a quick microwave dessert made with flour, sugar, egg, lemon juice, and zest. It has a tender, moist crumb with a bright citrus flavor and a light, fluffy texture. The dish is served directly from the mug as a single-serving sweet treat.
Prep Time 5 minutes
Cook Time 1 minute
Total Time 6 minutes
Course Main Course
Cuisine dessert
Servings 1
Calories 210 kcal

Equipment

  • Microwave-safe mug
  • Mixing spoon or fork

Ingredients
  

  • 4 tablespoons all-purpose flour
  • 2 tablespoons granulated sugar
  • 1/4 teaspoon baking powder
  • 1 large egg
  • 1 tablespoon fresh lemon juice about half a lemon
  • 1 teaspoon lemon zest freshly grated

Instructions
 

  • Begin by adding the flour, sugar, and baking powder to your microwave-safe mug. Mix these dry ingredients thoroughly with a spoon until well combined.
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  • Crack the egg into the mug and whisk it together with the dry ingredients until the mixture is smooth and slightly frothy.
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  • Add the lemon juice and lemon zest to the mixture. Stir well to incorporate the bright citrus flavors evenly throughout the batter.
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  • Microwave the mug on high for about 60 seconds, or until the top is set and slightly puffed. You may see it bubbling gently across the surface.
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  • Carefully remove the mug from the microwave — it will be hot! Check that the cake is cooked through by gently pressing the center; it should bounce back.
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  • Let the cake sit for a minute or two to cool slightly and settle. The aroma of lemon will be inviting and fresh.
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  • Enjoy your lemon mug cake straight from the mug or transfer it onto a plate. Share with a dusting of powdered sugar or a dollop of whipped cream if desired for extra indulgence.
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