Dr Pepper Barbecue Sauce

INGREDIENTS
1 bottle (20-oz) Dr Pepper
2 cups ketchup
1 cup brown sugar
¼ cup honey
¼ cup vinegar
1 Tbsp Worcestershire sauce
1 tsp chipotle chili powder
½ tsp garlic powder
½ tsp salt
¼ tsp ginger powder
¼ tsp galangal powder (or substitute an additional 1/4 tsp ginger)

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DIRECTIONS
Combine all ingredients and boil until thickened.  Root beer or cola could be substituted for Dr Pepper.