easy homemade burger sauce/spread (like in-n-out)

Missing In-N-Out's famous burgers? Don't worry, I've got your back! Here is a recipe that can bring the flavor of In-N-Out Burger to your own kitchen, whether you'd enjoy it with a beefy smashed burger, veggie burger or "protein style", wrapped in lettuce instead of a toasted bun. Not only will it taste delicious, but it's also super easy to make in a few minutes; with simple ingredients probably already in your refrigerator or pantry.