I have been trying to make my own sauce recently and wonder why so many people use ketchup instead of tomato paste. I like the Texas style the most and have many sauce I like, some i buy like Rudy's, and some I make using recipes from others. I would really like to just have my own and have messed around a bit trying to come up with the recipe. But there is always that question in the back of my mind. Anyone have an answer for me?