Kansas City Bbq Sauce - cooking recipe

Ingredients

2 teaspoons vegetable oil
1 onion, minced
4 cups low sodium chicken broth
1 cup root beer
1 cup cider vinegar
1 cup dark corn syrup
1/2 cup molasses
1/2 cup tomato paste
1/2 cup ketchup
2 tablespoons brown mustard
1 tablespoon hot sauce
1/2 teaspoon garlic powder
1/4 teaspoon liquid smoke (optional)

Preparation

Heat oil in saucepan over medium-high heat until shimmering.
Add onion and cook until softened, about 5 minutes.
Whisk in remaining ingredients, except for liquid smoke, and bring to boil.
Reduce heat to medium and simmer until mixture is thick and has reduced to 4 cups, about 1 hour.
Stir in liquid smoke, if using.
Sauce can be refrigerated in airtight container for up to 1 week.