Most Amazing Red Velvet Cupcakes

Ingredients

• 1 teaspoon distilled white vinegar
• 2/3 cup warm water
• 2 cups granulated sugar
• 1 teaspoon salt
• 1 teaspoon baking powder
• 1 cup buttermilk
• 2 cups all-purpose flour
• 2 tablespoons unsweetened cocoa powder
• 3 large eggs
• 1 teaspoon vanilla extract
• 2 cups whole milk
• pinch salt
• 1/3 cup cornstarch
• 2 tablespoons red food coloring
• 2 teaspoons baking soda
• 1/3 cup vegetable oil
• 1/2 cup all-purpose flour
• 2 cups unsalted butter