Start water boiling for the pasta. Preheat Smoker to 250degF.
Add pasta to boiling water and cook as directed on the package. Drain in a colander and return to pot away from heat.
In a sauce pan over medium high heat, add butter, onion powder and garlic powder. Once melted whisk in flour. Let cook for two minutes then whisk in milk and let cook for two minutes then whisk in seasonings and cook another two minutes. Whisk in heavy cream and cook another two minutes. Then add in sharp cheddar cheese, a handful at a time, whisking until it's melted in.
Add cheese sauce to pasta. and stir to thoroughly combine.
Transfer mac & cheese to a 9x9 smoker safe dish (foil) and sprinkle with cheddar cheese. Cover with a sheet of foil. Place in preheated smoker. Let smoke for 3 hours. Remove and let rest for 10 minutes before removing the foil to serve.
Keyword cheddar cheese, mac & cheese, mac and cheese, pasta side dish, Side Dish, side dish ideas, side dishes, smoked mac & cheese, smoker, smoker recipes