Canned Crushed Tomatoes
Makes 7 quarts.
Note: If you're able to can only one food each year, make it crushed tomatoes. They are incredibly useful throughout the winter. Admittedly, this preparation takes time and will make a mess. But it's worth the effort. To ensure that the tomatoes (which have variable pH) are shelf-stable, it is imperative that you add acid to the jar, in the form of either fresh lemon juice or citric acid. Citric acid is sold with canning supplies at grocery and hardware stores. You'll need 7 sterilized quart jars with new lids and rings. From Cathy Barrow, author of "Mrs. Wheelbarrow's Practical Pantry: Recipes and Techniques for Year-Round Preserving," to be published in November.
• About 20 lb. of red, ripe tomatoes, cored, peeled and seeded (see below)
• 14 tbsp. fresh lemon juice or 4 1/2 tsp. citric acid (see Note)
• 7 tsp. kosher salt or fine sea salt, optional
Directions
To peel the tomatoes: Bring a pot of water to a boil. Fill a bowl with ice water. Cut an "X" in the bottom of each tomato and remove and discard the stem. Place in the boiling water for 10 or 15 seconds — no longer. Use a slotted spoon to quickly transfer to the ice-water bath. The skins should simply slip off.
Tear or chop the peeled tomatoes into large chunks, removing seeds. Add the first 4 cups of tomatoes to an 8-quart or larger nonreactive pot. Use a potato masher or the back of a strong spoon to smash the tomatoes vigorously. Bring to a strong boil over medium-high heat before adding the next 4 cups of tomatoes; crush them with the masher and bring to a boil. Continue in this manner until all of the tomatoes are crushed.