Source

allrecipes.com [http://allrecipes.com/recipe/145549/in-a-pinch-ketchup/]

Yield

12 servings

Ingredients

• 1 6-ounce can tomato paste
• 2 tablespoons white vinegar
• 5 tablespoons brown sugar
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ¼ teaspoon allspice
• 1 teaspoon salt
• 1 teaspoon molasses
• 1 tablespoon corn syrup
• 1¼ cups water

Instructions

Mix together the tomato paste, white vinegar, brown sugar, garlic powder, onion powder, allspice, salt, molasses, corn syrup, and water in a saucepan over low heat; simmer gently until you get the consistency of ketchup, 45 minutes to 1 hour.
Taste and adjust salt if necessary before serving.