There are three basic barbecue sauces out there — tomato, mustard, or vinegar. Unfortunately, each of these recipes contain a significant amount of sugar, so I adapted this basic, tomato-based sauce and used orange juice as a natural sweetener to make it low in sugar.
Warm the oil in a saucepan over medium-low heat. Add the garlic and shallot and cook until soft. Add the tomato paste, orange juice, vinegar, mustard, paprika, salt, and pepper.
Simmer over low heat 15 to 20 minutes, stirring often.