Start off by soaking your potatoes for 1-2 hours. Remove and pat dry and then peel them (remove the skin) and slice off the top and bottom to create a smooth flat surface. From here you want to wipe with a paper towel and then cut them in half (length wise). Heat up a cast iron skillet over medium heat and then add 2 tablespoons avocado oil and sear/crisp both sides of your potatoes (top and bottom), basically forming a crust.
Now place in an indirect grill/smoker at 275 degrees and add butter, chicken stock, salt N pepper, thyme, garlic, onion and mushrooms. Let it go for 40 mins and then flip the potatoes and stir the ingredients. When the potatoes are reading 175-180 internal temp then season your steak(s) with salt, pepper and garlic powder and place them on the direct side as well. Flip after 20 mins and then remove at 118 internal temperature.
Let the steak rest for 10 mins and check the potatoes, they are done at 195 degrees. Once the potatoes are done remove them and cover under foil in a plate and sear your steaks off for 60-90 seconds per side. Remove and let rest for 10 mins.
While resting add 2 tablespoons of heavy cream in the cast iron where the potatoes were and let the pan deglaze. Let simmer for 2-3 mins and then pour on your steak and potatoes after slicing and plating.
Serve and enjoy with family and friends!