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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

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Instructions

  1. Step 1

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

  2. Step 2

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

  3. Step 3

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

  4. Step 4

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

  5. Step 5

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

  6. Step 6

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

  7. Step 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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