Ingredients

The following ingredients have 4 Servings
  • 5 egg yolks (room temperature)
  • 1 cup granulated sugar
  • 1/3 cup fresh lemon juice (about 4 – 5 lemons)
  • Zest of 4 lemons
  • 1/2 cup unsalted butter (cut in cubes)
  • 10 oz white chocolate
  • 3 – 4 tablespoons sprinkles (plus more sprinkles for sprinkling on the cupcakes)
  • 1 1/2 cups cake flour (can also use unbleached all-purpose flour)
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon baking soda
  • 1 teaspoon salt
  • 1/2 cup unsalted butter (room temperature)
  • 1 cup granulated sugar
  • 1/2 vanilla bean pod (beans scraped out)
  • 2 large eggs (room temperature)
  • 2 teaspoons vanilla extract
  • 1/2 cup buttermilk (room temperature)
  • 1/4 cup sour cream
  • 3/4 cup unsalted butter (room temperature)
  • 2 1/2 - 3 cups powdered sugar
  • 1/2 vanilla bean pod (beans scraped out)
  • 1 teaspoon vanilla extract
  • Pinch of salt
  • 2 -3 tablespoons heavy cream

Instruction