01 -
Heat oven to 400°F. Grease ceramic baking dish. Slice potatoes very thinly (1/16 inch).
02 -
Melt butter with garlic. Add flour to make roux. Cook 1-2 minutes. Whisk in cream until thickened.
03 -
Stir in parmesan, thyme, salt and pepper until smooth. Remove from heat.
04 -
Toss potato slices with sauce in large bowl. Stack slices upright in dish. Pour remaining sauce over top.
05 -
Cover with foil, bake 30 minutes. Uncover, bake 30 more minutes until golden and cooked through.
06 -
Let cool 10 minutes before serving.