Go Back

Light Watermelon Summer Mug Cake

Transform fresh watermelon into a fluffy single-serve cake in 90 seconds! This light summer mug cake delivers juicy flavor without heating up your kitchen. Perfect guilt-free treat for hot afternoons. Save for your next watermelon haul! 🍉
Print Recipe Pin Recipe
Prep Time 3 minutes
Cook Time 2 minutes
Total Time 5 minutes
Servings: 1 servings
Course: Dessert
Cuisine: American
Ingredients Method

Ingredients
  

  • 3 tablespoons all-purpose flour
  • 2 tablespoons granulated sugar
  • 1/4 teaspoon baking powder
  • 1 pinch salt
  • 3 tablespoons watermelon puree seedless and blended smooth
  • 1 tablespoon vegetable oil or melted coconut oil
  • 1/4 teaspoon vanilla extract
  • 1 drop red food coloring optional for deeper pink color

Method
 

  1. In a microwave-safe mug (at least 12 ounces capacity), whisk together the flour, sugar, baking powder, and salt with a fork until no lumps remain.
  2. Blend fresh seedless watermelon chunks in a blender until completely smooth, then measure out 3 tablespoons of the puree.
  3. Add the watermelon puree, oil, vanilla extract, and food coloring (if using) to the dry ingredients in the mug. Stir gently with a fork just until combined, about 15-20 strokes, being careful not to overmix.
  4. Tap the mug gently on the counter 2-3 times to release any air bubbles trapped in the batter.
  5. Microwave on high power for 60-90 seconds, depending on your microwave wattage. The cake is done when the center is just set and springs back lightly when touched.
  6. Let the mug cake rest for 1 minute to finish cooking with residual heat and cool slightly before eating directly from the mug or inverting onto a small plate.