Spicy Ketchup Recipe: How to Make It

Ingredients

• 1 tablespoon olive oil
• 1 medium onion, chopped
• 3 pounds tomatoes (about 11 medium), coarsely chopped
• 1 cinnamon stick (3 inches)
• 3/4 teaspoon celery seed
• 1/2 teaspoon mustard seed
• 1/4 teaspoon whole allspice
• 1/3 cup sugar
• 1 teaspoon salt
• 3/4 cup red wine vinegar
• 1-1/2 teaspoons smoked paprika
• 1-1/2 teaspoons Sriracha chili sauce, optional