Rhubarb Barbeque Sauce - cooking recipe

Ingredients

4 stalks fresh rhubarb, trimmed and chopped
1 (12 fl oz) can almond-fruit flavored soda (such as Dr Pepper(R))
1 cup apple cider vinegar
1 sweet onion (such as Vidalia(R)), chopped
1 cup brown sugar
1/4 cup molasses
1 tablespoon Worcestershire sauce
1/2 teaspoon ground cinnamon
1/2 teaspoon ground allspice
1/2 teaspoon salt
1/2 teaspoon ground black pepper
1/4 teaspoon ground cloves
1/4 teaspoon ground dried chipotle pepper
1/4 teaspoon garlic powder
2 teaspoons liquid smoke flavoring (optional)

Preparation

Combine rhubarb, soda, apple cider vinegar, sweet onion, brown sugar, molasses, Worcestershire sauce, cinnamon, allspice, salt, black pepper, cloves, ground chipotle, garlic powder, and liquid smoke in a saucepan; bring to a boil, and reduce heat to low. Simmer until rhubarb and onion are very soft, about 45 minutes, stirring often.
Pour the sauce into a blender, filling the pitcher no more than halfway full. Hold down the lid of the blender with a folded kitchen towel and pulse a few times to get the sauce moving before leaving it on to puree. Puree in batches if necessary until sauce is smooth.