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.