Tomato Butter

Ten pounds ripe tomatoes. Peel and cut in pieces. Make a syrup of 3 pounds sugar, 1 quart vinegar, 1/4 teaspoonful cayenne pepper, 1 tablespoonful each cloves, allspice, cinnamon (whole spice) and salt. When syrup is hot add tomatoes and cook 3 hours, or until real thick.