Cold smoking takes a few days, to a week to properly smoke food. The heat source which creates the smoke is far from the food, so it does not cook. This is the difference between hot smoking on a grill, which cooks the food with a light smoke flavour.
Learn how to graft fruit trees so that you can have multiple varieties on the same tree! Or turn that old crabapple tree into a productive Macintosh tree! My Dad did this with an apple tree in our yard.