Tres Leches Coconut Cupcakes with Dulce de Leche Buttercream on BakeSpace.com

Ingredients

• 1/4 cup shortening
• 1/2 cup unsalted butter, softened
• 1 cup sugar
• 3 eggs, separated
• 1/2 teaspoon vanilla extract
• 1 cup all-purpose flour
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 3/4 cup buttermilk
• 1/2 cup evaporated milk
• 1/2 cup sweetened condensed milk
• 1/2 cup coconut milk
• 1 cup lightly toasted flaked coconut (Mounds or Angel Flake brand)
• Dulce de Leche Buttercream:
• 1 (14-ounce) can sweetened condensed milk (Eagle brand)
• 2 egg yolks
• 3/4 cup sugar
• 3 tablespoons cornstarch
• 1/4 teaspoon salt
• 1/4 cup water
• 1 teaspoon vanilla extract
• 14 tablespoons unsalted butter, softened to room temperature
• 1 cup powdered sugar