For a flavor enhancer, it's easy to upgrade canned tomatoes by cooking them to the point of caramelization. But what about fresh ones? There's salt, of course, but the other pantry staple you ...

tomato paste, and other canned vegetables. No-salt-added versions of these types of products, however, are readily available. No-salt-added isn’t the only option for store-bought staples.

Epsom salt, chemically known as magnesium sulfate, is often touted as a beneficial supplement for tomato plants. The ...