My daughter works at an Italian restaurant and brought home something similar to this. We experimented and here it is. I love the fact that this doesn't need to be cooked--it's so fresh! The better your tomatoes are, the better this will be. I like to use grape tomatoes or roma. Please feel free to adjust any ingredient amounts to your taste. I love the capers in this and will usually add more, and 1/4 C oil is plenty for me. Cook time is for your pasta. (You can add very thin slivers of sweet or red onion, though I haven't tried it).