You can keep it simple and follow the instructions on the box then stir a couple of tablespoons of sour cream into the batter before baking it in the oven.
To really bump things up a notch, use two boxes and mix it with 1 cup of sour cream plus milk, eggs, melted butter, and a bit of sugar.
To temper the richness of the sour cream, squirt a little honey into the batter for sweetness.
No matter how much sour cream you add,
Don't forget to combine it well so you don't end up biting into pockets of it throughout the bread.
Using sour cream is an easy way to upgrade your store-bought cornbread, but it's not the only way.
If the box says to use vegetable oil, swap it for melted butter, rendered bacon grease, or truffle oil to achieve more flavor.