Potato Au Gratin

1. 1

   Heat oven to 350 degrees F.

2. 2

   Melt butter in medium saucepan on medium heat.

3. 3

   Add flour and mustard, cook and stir constantly for 1 min.

4. 4

   Gradually add milk, stirring until well blended; cook 3 to 5 min.

5. 5

   until thickened, stirring constantly.

6. 6

   Add 1 cup of cheese, stir until melted.

7. 7

   Layer potatoes, onions and cheese sauce alternately in 2-L casserole dish sprayed with cooking spray, ending with sauce.

8. 8

   Top with remaining shredded cheese.

9. 9

   Cover.

10. 10

    Bake 1-1/2 hours or until potatoes are tender and top is golden brown, uncovering for the last 15 min.

* Per serving · 4 servings · Values may vary.

No additional tips available.