Joe, I misspoke - it wasn't Martha Stewart, it was Mrs. Wheelbarrow, a gardening and canning site I found years ago via twitter.

Roasted tomato and garlic soup.

Roasted Tomato and Garlic Soup
This recipe can be pressure canned or frozen. Cream is added when the soup is reheated.
Makes about 6 pints

15-20 tomatoes
2 carrots, chop roughly
1 large onion, quartered
2 whole heads garlic, peeled, not crushed
olive oil
3 cups fresh, homemade, chicken broth, skimmed of fat
1/2 cup chopped fresh basil — (or 1 Tbsp. dried)

Preheat oven to 425°
Core tomatoes and cut in half. Place, cut side up, on parchment covered cookie sheet. Add carrots, onion and garlic. Brush with olive oil.
Roast at 425°F for about an hour, or until veggies are roasted and a little blackened.
Blend with a stick blender (or in small batches in a blender) until smooth. Throw the basil in and blend some more.
Place in a large saucepan with the chicken broth and simmer for 10 minutes.

To can: Process in a pressure canner, pints for 60 min. and quarts for 70 min. at 11# of pressure (dial gauge.)

To serve: Warm soup in a saucepan. Add cream to taste. Serve garnished with chives or frizzled shallots.