Created on September 12, 2009 using FlipShare. Question by Bert: Can I add ingredients to tomato juice to make tomato sauce. ? All I have is tomato juice and a few other spices like paprika parsley chili powder. I need tomato sauce any help. Best answer: Answer by ஐchicaஐyou’ll need a thickener…thats pretty much it (corn starch, flour) Give your answer to this question below!