5large Idaho or russet potatoesabout 3 pounds, scrubbed and sliced 1/8 to 1/4 inch thick (use a sharp knife or mandolin for easy slicing and uniform sized pieces)
1small onionsliced thin
3cupsshredded sharp cheddar cheese
1/2cupgrated Parmesan cheese
Instructions
Prepare ingredients as directed.
Prepare charcoal briquettes for baking at 400 degrees F. You'll need 29 coals. (See * note)
Using bottom coals only, heat standard-depth 12-inch cast iron Dutch oven and fry bacon until it is crispy.
While the bacon is cooking, in medium bowl, whisk together the heavy cream, chicken broth, garlic, cornstarch, thyme, salt and black pepper and set aside.
Remove the bacon to paper towel to drain.
Do not drain the grease from the pan, layer half of the potatoes, all of the onion slices, half of the bacon, and 1/3 of the cheddar cheese to the pot. (See ** note)
Add another layer with the remaining potatoes and bacon to the pot.
Stir the set aside liquid and pour the cream mixture over the potatoes.
Sprinkle the remaining cheddar cheese and all of the Parmesan cheese over the top of the entire dish.
Cover with lid and place coals for baking at 400 degrees F (29 total = 19 on top of the lid / 10 below the bottom of the oven).
Bake until potatoes are tender and the top is golden brown, about 60 minutes.
Remove from heat and let stand about 10 minutes before serving. (See *** note)
Notes
*You may need 2 sets of coals for this cooking time so be prepared to start your second batch of coals. Rotate the lid and oven in opposite directions every 15 minutes to ensure even baking.Dutch Oven Temperature Charthttps://www.campingforfoodies.com/dutch-oven-temperature-chart/**There will be a fair amount of grease in the bottom of the pot, leave it in there to make sure nothing sticks during the baking process.***Use a slotted spoon to drain excess grease before dishing the potatoes to serving plates.