Ketchup: Use 1/4 cup of ketchup to make this sauce for fries. Red Wine Vinegar: Red wine vinegar gives this sauce a tang of acid. You can also try apple cider vinegar.
Frozen french fries are a convenient snack food and a total crowd-pleaser. All of the hard work is done for you, so all you have to do is retrieve them from the freezer and heat them up.