Banana Cupcakes with Vanilla Pastry Cream

INGREDIENTS

• :
• 2¾ cups all-purpose flour
• 1¼ teaspoons baking powder
• 1 teaspoon baking soda
• ½ teaspoon salt
• ½ cup (4 ounces) unsalted butter, at room temperature
• ¼ cup vegetable shortening, at room temperature
• 1¾ cups granulated sugar
• 2 teaspoons vanilla extract
• 2 eggs
• 1½ cups mashed very ripe bananas (about 4 bananas)
• ½ cup buttermilk
• 3 cups half-and-half
• 6 large egg yolks
• ½ cup granulated sugar
• 3 tablespoons cornstarch
• ¼ teaspoon salt
• 1 teaspoon vanilla extract