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20-Minute Vanilla Cupcakes with Buttercream

Mug-cake cupcakes mixed and baked in minutes, topped with silky buttercream and rainbow sprinkles. No mixer, no fuss—straight from mug to plate.

Total time
20 min
Servings
4
Calories
385
Protein
4g
20-Minute Vanilla Cupcakes with Buttercream
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Ingredients

  • 1 cup all-purpose flour
  • ¾ cup granulated sugar
  • 1.5 tsp baking powder
  • ½ cup milk
  • 2 whole egg
  • 3 tbsp butter, melted
  • 1 tsp vanilla extract
  • 4 tbsp butter, softened
  • 1.5 cups powdered sugar
  • ½ tsp vanilla extract
  • 2 tbsp colorful sprinkles

Instructions

  1. 1

    Whisk flour, sugar, and baking powder in a bowl until combined.

  2. 2

    Add milk, eggs, melted butter, and 1 tsp vanilla to the dry mix.

  3. 3

    Stir until just smooth—no lumps, don't overmix.

  4. 4

    Fill 4 microwave-safe mugs or cupcake liners halfway with batter.

  5. 5

    Microwave each mug 90–120 seconds until a toothpick comes out clean.

  6. 6

    While cakes cool, beat softened butter, powdered sugar, and 0.5 tsp vanilla until fluffy.

  7. 7

    Top each cooled cupcake with a dollop of frosting and sprinkles.

Tools you’ll need

  • mixing bowl
  • whisk
  • spoon
  • 4 microwave-safe mugs (or cupcake liner cups)
  • toothpick
  • handheld mixer or fork
  • small bowl

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