Ingredients

  • 1 medium sweet onion, diced
  • 1 tablespoon olive oil
  • 1/4 cup brown sugar
  • 1/2 teaspoon cinnamon
  • 1 teaspoon celery seed (optional)
  • 1 (28 ounce) can whole tomatoes
  • 1/2 cup apple cider vinegar
  • 1 teaspoon molasses
  • 1/2 teaspoon ground cloves
  • 3 chipotle chiles in adobo
  • salt and pepper, to taste

Method

  • Cook onions in oil over medium-low heat until golden. Add tomatoes and juice, crushing with the back of spoon.
  • Stir in remaining ingredients, bring to a boil, reduce heat and simmer for 1 hour.
  • Puree in food processor, then return to pan ( I strained back into pan to remove any remaining small bits of chile or tomato ) and cook over low heat until it reaches your desired consistency.