Makes approximately 4 cups.
4 cups seeded and chopped fresh tomatoes
2 cups chopped nectarines
1 cup chopped onion
1/2 cup golden raisins
1/2 cup firmly packed light brown sugar
1/2 cup cider vinegar
1/2 tsp dry mustard
1/4 tsp kosher salt
A pinch of cayenne pepper, or hot sauce, to taste
Combine all ingredients in a large stainless steel or other nonreactive pot. Bring to a boil, then reduce heat and simmer, uncovered, for 1-1/2 hours or until thickened. Stir frequently to keep chutney from burning. Pack into airtight containers and store in the refrigerator for up to a month (or can, using a water-process bath).