Instructions

1. Boil the potatoes in a pot of water for 20 minutes, then allow to cool.
2. Preheat the oven to 350 degrees F.
3. In a saucepan, melt the butter over medium heat and mix with the flour. Add the milk, pumpkin, cheese and seasonings. Bring to a soft boil and stir well. Reduce the heat to thicken.
4. Peel the potatoes and cut them into 1/4-inch thick slices.
5. Layer the potatoes in one layer in the bottom of a greased 9x9-inch baking dish. Pour 1/3 of the sauce over the potatoes.
6. Repeat for 2 more layers, topping the final layer with the remaining sauce.
7. Top with extra shredded cheese and thyme.
8. Bake for 45 minutes, until the top is slightly browned.