Red Velvet Cupcakes - Walter Stewart's Market

Ingredients

• 1 cup plus 2 tablespoons flour
• 1/2 teaspoon kosher salt
• 2 tablespoons unsweetened cocoa powder
• 2 tablespoons red food coloring
• 1/2 teaspoon vanilla extract
• 1 tablespoon water
• 4 tablespoons {1/2 stick} unsalted butter, room temperature
• 3/4 cups sugar
• 1 large egg
• 1/2 cup buttermilk
• 1/2 teaspoon baking soda
• 1 1/2 teaspoons distilled white vinegar
• 4 ounces {1 stick} unsalted butter, room temperature
• 4 ounces cream cheese, room temperature
• 2 1/2 cups powdered sugar
• 1/2 to 1 tablespoon vanilla extract
• clear sanding sugar and white nonpareils for decorating {optional}