What is the simplest recipe for making red velvet cake?

This may not be the simplest red velvet cake recipe but I can promise you it’s really good. The recipe comes from https://prettysimplesweet.com/red-velvet-cake/. The ingredients include: 2½ cups (340g) all-purpose flour ,¼ cup (35g) corn flour/cornstarch, 2 tablespoons (12g) unsweetened cocoa powder (any kind works), 1 teaspoon baking soda, ¾ teaspoon salt, ½ cup (1 stick/115g) unsalted butter, softened to room temperature, 2⅛ cups (425g) granulated sugar, 1 cup (240 ml) vegetable or canola oil, 3 large eggs, 2 teaspoons vanilla extract, 1¼ teaspoons distilled wine vinegar, 2-3 tablespoons red food coloring and 1 cup (240 ml) buttermilk.