i personaly don't like the taste of liquid smoke that you buy.... there is a way to make it yourself but i don't know the exact way.......if you have a gas grill,next time your at home depot go to the section that has the wood chips and such and there will be a small smoker box about 2 inches high, 4 inches wide and 8inches long with holes in the bottom.. get some wood chips and put them in that and put it overtop of the burners.

if you have charcoal just put the wood over the coals and be sure to cook it in-directly.

god i love cooking