slowly bring to a boil, reduce heat and simmer for 20 minutes. allow to cool.
pour mixture into blender container. process until smooth, scraping down sides as necessary. remove about 1 cup sauce to use during the barbecue process. reserve another cup of sauce for use in preparing the cowboy pinto beans. serve remaining sauce with chicken (it may be refrigerated up to a month). makes about 5 cups.
put about 2 cups of your wood chips in the center of a large sheet of heavy-duty aluminum foil. fold over the edges and seal the top and sides, making a packet. make several small holes in the top.
remove food rack from grill.
place 