Red Velvet Cupcakes

Ingredients

• 1 cup cake flour
• 1/4 cup unsweetened cocoa powder
• 1/2 teaspoon kosher salt
• 2/3 cup vegetable oil
• 3/4 granulated sugar
• 1 egg
• 1 teaspoon pure vanilla extract
• 2 tablespoons red food coloring
• 1/2 cup buttermilk
• 1/2 teaspoon baking soda
• 3/4 teaspoon white vinegar
• 8 ounces cream cheese, softened to room temperature
• 2 tablespoons vegetable shortening
• 3 tablespoons butter, softened to room temperature
• 1 pound confectioners’ sugar (about 3 ¾ cups), sifted
• 2 teaspoons clear vanilla extract