Place butter in dish (preferably 10 inch cast iron skillet) and set in smoker heated to about 225-250 degrees until butter melts.
Set aside about ⅓-1/2 cup of grated cheese for topping.
Remove from heat and add noodles, half-and-half, cheeses and black pepper, stirring until well combined.
Return skillet to smoker and smoke for approximately 2 hours, stirring every 20 minutes.
At about 1 and ½ hours the mixture should be creamy with much of the liquid absorbed. Top with remaining cheese, spice blend mixed with paprika (if desired) and breadcrumbs (if desired).