Vanilla Cupcakes with Vanilla Buttercream Frosting

• Vegetarian

• Refrigerated

  • 1 Egg, large
  • 2 Egg yolks, large

• Baking & Spices

  • 1 1/2 cups All-purpose flour
  • 1 1/2 tsp Baking powder
  • 1 cup Granulated sugar
  • 2 1/2 cups Powdered sugar
  • 1/2 tsp Table salt
  • 4 1/2 tsp Vanilla

• Dairy

  • 1 stick 8 tablespoons unsalted butter, unsalted
  • 1 cup Butter, unsalted
  • 1/2 cup Sour cream

Found on browneyedbaker.com