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A wooden cutting board with a bowl of caramelized onion and tomato jam and several toasted baguette slices on it.
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4.75 / 8 votes

Caramelized Onion and Tomato Jam

This sweet and sticky no-pectin tomato jam is made with caramelized onions, toasted spices, and slowly simmered Roma tomatoes. You'll be putting it on everything.
Prep Time30 minutes
Cook Time1 hour
Total Time1 hour 30 minutes
Course: Condiments
Cuisine: American
Servings: 12 servings | 1 1/2 cups
Calories: 64

Ingredients

  • 3/4 teaspoon cumin seeds
  • 1/2 teaspoon coriander seeds
  • 1/2 teaspoon fennel seeds
  • 2 tablespoons canola oil or other mild vegetable oil
  • 2 teaspoons grated fresh ginger
  • 2 medium yellow onions, chopped
  • 2 teaspoons kosher salt
  • 1/4 teaspoon red pepper flakes
  • Water
  • 1/4 cup apple cider vinegar
  • 1 1/2 pounds Roma tomatoes, seeded, cored, and cut into 1/2-inch (12 mm) dice
  • 1/3 cup firmly packed dark brown sugar
  • Crackers or toasted baguette, for serving

Instructions

  • Use a spice grinder or a mortar and pestle to crush the cumin, coriander, and fennel seeds into a powder.
  • In a large heavy pot over medium heat, warm the oil. Stir in the spices and cook for 1 minute, then add the ginger and cook for 30 seconds more.
  • Toss in the onions, salt, and pepper flakes, and sauté, stirring frequently and scraping the bottom of the pot, until the onions are golden and caramelized, 20 to 25 minutes. If needed, splash in water, 1 tablespoon at a time, and reduce heat to medium-low, if necessary, to prevent burning.
  • Splash in the vinegar and use a wooden spoon to scrape up the browned bits from the bottom of the pan. Stir in the tomatoes and sugar and bring the mixture to a boil.
  • Reduce the heat to low and simmer until the mixture is thick and jammy, 40 to 60 minutes.
  • Let cool, then refrigerate until ready to use. Serve with crackers or a toasted baguette.

Nutrition

Serving: 0.25cup | Calories: 64kcal | Carbohydrates: 10g | Protein: 1g | Fat: 3g | Saturated Fat: 0.2g | Monounsaturated Fat: 2g | Trans Fat: 0.01g | Sodium: 394mg | Fiber: 1g | Sugar: 8g