Melt butter over medium low heat in small sauce pan.
Add additional ingredients and stir to blend.
Place cubed sweet potatoes in a 10" cast iron skillet and top with butter mixture, stirring.
Cook in smoker or grill with wood chips in box at approximately 275° for 2+/- hours, stirring every 20 minutes. Remove and from heat when a fork pierces a cube without resistance.
Additional herb options are rosemary or thyme.Honey can be substituted with brown sugar.Cooking times and temperature can vary if cooking with additional items at a different temperature. Check for doneness each time the sweet potatoes are stirred.