Red Velvet Cupcakes Recipe

Name: Red Velvet Cupcakes Recipe
Ingredients: 1 3/4 cup (8 3/4 ounces) all-purpose flour; 1 tablespoon cocoa; 10 tablespoons (5 ounces) unsalted butter, softened, divided; 1/2 cup plus 1/3 cup (about 6 ounces) granulated sugar; 1/2 teaspoon salt; 1 large egg; 1 tablespoon red food coloring; 2 teaspoons vanilla extract, divided; 3/4 cup milk; 3/4 teaspoon baking soda; 3/4 teaspoon vinegar; 8 ounces cream cheese, softened; 3 cups (12 ounces) confectioners' sugar, sifted; 3 ounces white chocolate, melted and cooled slightly; 1/4 cup red sugar for garnish