Hi Deb,
I double checked the recipe and, yep, that's what it calls for. We have made these ribs & sauce using "Colgin's" Liquid Smoke a number of times and they are outstanding! <img src="http://www.traveltalkonline.com/forums/images/graemlins/Clapping.gif" alt="" />
I guess the real trick is not to spill the bottle of liquid smoke in the refrig. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />