Preheat oven to 325F
Slice bacon into ¼ inch pieces, in a hot skillet, fry the bacon until crisp, remove the bacon and discard all but 2 tablespoons of fat.
Sauté onions and garlic in bacon grease until soft, add salt and pepper
Peel and slice potatoes, cut a flat part on the bottom of the potato so they stand up nicely, keep the potato slices together to keep the original shape of the potato,
Place the potatoes in the casserole dish as you peel them, it’s a bit of a puzzle to make sure the pieces fit and you don’t want to peel more than necessary
Combine the onions and bacon and place in the bottom of an 8 x 10-inch casserole dish
Arrange potatoes on top of the onions, pour the beef stock on top of the potatoes, up to the ¼ inch of the edge of the casserole dish
Tuck the bay leaves and the thyme in and around the potatoes.
Cover with aluminum foil and bake for 1 hour 45 minutes
Remove the aluminum foil and raise the oven to 400F, baste the potatoes every 10 minutes until they have a nice color, approximately 45-60 minutes
Remove the cooked thyme and replace it with a fresh garnish for presentation.