15-Minute Vanilla Cupcakes with Rainbow Frosting
Microwave vanilla cupcakes baked individually in mugs, topped with fluffy vanilla buttercream and colorful sprinkles. Ready to eat in under 15 minutes—no oven required.
- Total time
- 15 min
- Servings
- 6
- Calories
- 285
- Protein
- 2g
Ingredients
- ¾ cup all-purpose flour
- ½ cup granulated sugar
- ½ tsp baking powder
- 4 tbsp butter, melted
- 1 large egg
- ½ tsp vanilla extract
- ¼ cup butter, softened
- 1 cup powdered sugar
- 2 tbsp colorful sprinkles
Instructions
- 1
Mix flour, granulated sugar, and baking powder in a bowl.
- 2
Whisk melted butter, egg, and vanilla extract in another bowl until smooth.
- 3
Fold wet ingredients into dry ingredients until just combined; do not overmix.
- 4
Divide batter evenly among 6 microwave-safe mugs, filling each halfway.
- 5
Microwave mugs in two batches (3 at a time) for 90 seconds each until a toothpick inserted comes out clean.
- 6
Beat softened butter and powdered sugar until fluffy, about 2 minutes.
- 7
Spoon frosting onto cooled cupcakes and top with colorful sprinkles.
Tools you’ll need
- 2 mixing bowls
- whisk
- electric mixer or fork
- 6 microwave-safe mugs (8–10 oz each)
- spoon
- toothpick
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