I make Son of Grok's:

http://www.sonofgrok.com/2009/06/sog-zesty-bbq-zauce/

Adding cumin and a little basil

Definitely make a double batch, and use home made beef stock.

And let it reduce, nice and gooey :)

* 1 1/4 cup Chicken Broth (you can also use vegetable broth, or plain water)
* 6 oz can of tomato paste (no salt)
* The juice of 1.5 limes
* 1 tablespoon unrefined virgin coconut oil
* 2 shallots, minced
* 3 cloves garlic minced
* 1 tsp organic spicy (or dijon) mustard (always check ingredients, not all dijon mustards have favorable ingredients.)
* 1 tsp chipotle seasoning
* 1 tsp smoked paprika
* 1 tsp ground cumin
* 1 tsp salt
* Optional 1 tablespoon of raw honey 

I've been experimenting based on the ingredients in Chaka's (http://www.chakasmmm.com/about/). I use molasses instead of HFCS and balsamic vinegar in place of soy sauce. So use those as a base and add in your spices and fruit juices one at a time. I found that adding sweated shallots to the mix offers a sweet flavor. I'm impressed with my creations.

Tomato paste, honey, mustard, apple cider vinegar (clearly the tomato paste is the base, vinegar is optional (as is the mustard))

add salt, pepper, cayenne, a small amount of curry, a small amount of cumin, clove of crushed garlic

cook on a very low simmer until the color darkens a shade, and the sauce thickens

taste and adjust seasonings

Let me go ahead and say though, I've been making a "wet rub" for bbq by drizzling honey over the raw ribs/brisket/etc... then liberally coating that with a spice rub... rubbing it all into a paste on the surface of the meat with the back of a spoon... then cooking. No sauce required... and GOOOOOD!

The recipe

One recipe that I keep seeing coming up on other blogs and sites is the original Son of Grok recipe - supposed to be dynamite!

http://www.sonofgrok.com/2009/06/sog-zesty-bbq-zauce/

Ours was amazing. We used it for a pulled pork recipe. Looks like Jordan posted it for us. Thanks Jordan.

Barbecue Sauce: 1 1/4 cup Imagine Chicken Broth (you can also use vegetable broth, or plain water) 6 oz can of tomato paste (no salt) The juice of 1.5 limes 1 tablespoon unrefined virgin coconut oil 2 shallots, minced 3 cloves garlic minced 1 tsp organic spicy (or dijon) mustard (always check ingredients, not all dijon mustards have favorable ingredients.) 1 tsp chipotle seasoning 1 tsp smoked paprika 1 tsp ground cumin 1 tsp salt 1/2 tsp liquid stevia extract (you can also use 1 tablespoon of pure maple syrup or raw honey if you choose) Process:

In a sauce pan, heat coconut oil on medium. Add garlic and shallots, and saute until soft and translucent. Add mustard, smoked paprika, chipotle, cumin, and salt, and continue to saute (about 30 seconds). Add chicken broth, lime juice, stevia, and tomato paste. Whisk all ingredients until smooth. Bring to a light boil, reduce to simmer, and slightly cover with a lid. Simmer for 45 minutes, and let cool.

My favorite so far is this one:

http://paleograd.blogspot.com/2011/03/new-bbq-sauce-recipe.html

I made a bbq sauce that doesn't taste like traditional sauce, but it's not strictly paleo.

I melted seven little squares of very dark chocolate in some butter, about 1:1, added some Korean red pepper (cayenne would probably work too) and some cinnamon to taste. I let it mellow. I pureed two tomatoes and added a little juice from an orange, acacia honey to taste a little lemon juice and sea salt. I simmered it until most of the water was gone, then mixed all the ingredients together. It coated the ribs well. It had an interesting flavor - a little chocolately, not too sweet, tangy and rich. However, it doesn't taste or pour like traditional sauce but I prefer this recipe because the flavor is more rounded.