We’re barbecuing this weekend (on a new pellet grill!), so I started looking around for a sauce. This is a combination of various recipes and adjustments I made as I went along. Some of the measurements were kind of eyeballed, so you might need to tweak to your own tastes (especially for the ratio of sweet/sour/spicy).
2 6-oz cans tomato paste
1/2 cup apple cider vinegar
1 Tablespoon lemon juice
1 cup sugar-equivalent sweetener (I used a combination of erythritol and sucralose)
2 Tablespoons Worcestershire sauce
1 Tablespoon liquid smoke
1 Tablespoon smoked paprika
1 tsp garlic powder
1 tsp onion powder
1/2 tsp black pepper
1/2 tsp sea salt
1/4 tsp chili powder
1/4 tsp cayenne pepper
1/2 tsp powdered mustard
1-1/2 cups water
Combine everything in a saucepan and whisk together. Simmer for 20-30 minutes.