But, before we dive into the substitution talk, let's briefly discuss the difference between tomato sauce and tomato paste. Tomato paste is basically concentrated tomato sauce, with most of the water content removed. This makes it thicker and more intense in flavor.
On the other hand, tomato sauce is, well, sauce-like - it's got a higher water content and a milder flavor. So, if you're using tomato sauce instead of tomato paste, you'll need to adjust the quantities and possibly the cooking time. Don't worry, it's not rocket science!
Now, let's get back to the substitution question. If you're making a dish that requires a strong tomato flavor, like a Bolognese sauce or a braise, using tomato sauce instead of tomato paste might not be the best idea. You'll end up with a more diluted flavor, and possibly a longer cooking time to get the desired consistency.
Tomato Paste Instead of Sauce: When and How to Substitute