Homemade Cocktail Sauce - cooking recipe

Ingredients

10 -12 plum tomatoes (about 1 1/2 lbs.)
1 medium onion, finely chopped
1 stalk celery, finely chopped
6 garlic cloves, minced
1/4 cup balsamic vinegar
1/3 cup red wine vinegar
2 tablespoons sugar
1/8 - 1/4 teaspoon cayenne pepper
1 tablespoon Worcestershire sauce
2 tablespoons fresh lemon juice
3 tablespoons tomato paste
1/2 teaspoon salt (or to taste)
1 tablespoon creamed horseradish

Preparation

Cut tomatoes in half crosswise (not through stem end), squeeze out seeds, and
chop into about 1/4-inch dice. In a medium bowl, stir together tomatoes, onion, celery, garlic, vinegars, sugar, pepper, Worcestershire sauce, lemon juice, tomato paste, and salt. Place ingredients from bowl into a crockpot. Cook 4-5 hours on low.
Stir in horseradish. Remove from crockpot and place in container with lid. Refrigerate for at least 30 minutes for flavors to blend. (The sauce may be refrigerated up to 2 weeks.)
Makes 2-1/4 cups.