Summer will be here before you know it, and soon we will all be firing up the grill to cook up burgers and dogs. Why not get a little bougie and serve them with some homemade ketchup and mustard? Watch Me Homemade Vs Store-Bought Did you know that store-bought ketchup can be up to 24% sugar? Usually in the form of high fructose corn syrup. And often the sugar-free ones aren't unsweetened, they just use fake sweeteners instead. The ingredient list also shows "Natural Flavor"