I bought a jar of Trader Joe's Arrabbiata Sauce for the specific reason of learning how to make it myself. The sauce has a nice kick to it owing to the chili powder. For a vegan version, omit the anchovy. All of the ingredient amounts are estimated. Use fresh tomatoes in the summer and off season use the best canned tomatoes you can find. I used a can of organic fire roasted tomatoes. From the jar's label: "Arrabbiate Pasta Sauce is a traditional sauce originating in the central Italian city of Rome. Prepared with a combination of tomatoes, red bell peppers, and seasoned with extra virgin olive oil."