Tomato peels also become bitter as they cook, which will interfere with the sweet flavor you're expecting. So for a sweet, mellow flavor and a smooth texture, go ahead and peel your tomatoes first.

You’ll find a dizzying array of canned tomatoes at the grocery store, often from the same company: whole peeled, crushed, ...

It is vital that the onions are completely soft before you add the tomatoes. Slice the peeled fresh tomatoes and add to the pan with their juices (if you are using tinned tomatoes, you can tip ...