Colorful Holiday Potatoes

Directions

1. 1
   Preheat oven to 350°F.
2. 2
   Grease an 11 x 7 x 1 1/2-inch baking dish; set aside.
3. 3
   Slice potatoes 1/8 inch thin; place in water for 20 minutes.
4. 4
   In small bowl, mix flour and butter until smooth.
5. 5
   In medium saucepan; heat milk and broth over medium low heat.
6. 6
   Add flour mixture to hot milk; cook stirring until thickened and bubbly.
7. 7
   Reduce to low; stir in 1/2 cup parmesan and 1/2 cup fontina cheese, thyme, salt and pepper mixing well.
8. 8
   Remove from heat.
9. 9
   Alternate layers of drained potato with sweet potato adding 1/4 of sauce and 1/8 cup fontina between each layer.
10. 10
    Top with 1/4 cup parmesan.
11. 11
    Bake covered with foil for 45 minutes.
12. 12
    Remove foil and continue to bake for 45-55 minutes until potatoes are tender and top is browned.
13. 13
    Allow to sit for 10 minutes before serving.