Rhubarb Barbecue Sauce 

Ingredients

• 1 Tbsp canola oil
• 1 cup brown sugar
• 2 cloves garlic (minced)
• ½ cup diced onion (½ medium onion)
• 2 cups rhubarb (fresh or frozen, diced (4-5 stalks))
• ¼ cup cider vinegar
• 1 Tbsp Dijon mustard
• 1 Tbsp Worcestershire sauce
• 1 can tomato paste (5.5 oz)
• ¼ cup water
• 1 Tbsp chili powder
• ½ tsp cayenne pepper
• ½ tsp salt
• ¼ tsp black pepper
• 1-2 tsp liquid smoke or smoked paprika (optional)