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 mins
Cook Time 1 minute min
Total Time 6 minutes mins
Course Main Course
Cuisine dessert
Servings 1
Calories 210 kcal
Microwave-safe mug
Mixing spoon or fork
- 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
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.
Crack the egg into the mug and whisk it together with the dry ingredients until the mixture is smooth and slightly frothy.
Add the lemon juice and lemon zest to the mixture. Stir well to incorporate the bright citrus flavors evenly throughout the batter.
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.
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.
Let the cake sit for a minute or two to cool slightly and settle. The aroma of lemon will be inviting and fresh.
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.