Ham & Potatoes Au Gratin

Ham & Potatoes Au Gratin

6-8 medium potatoes
1 ½ cup diced cooked ham
4 Tablespoons butter
1 medium copped onion
3 Tablespoons flour
¼ tsp. celery salt
Salt and pepper to taste
2 ½ cups milk
1 can cream of chicken soup
2 cups grated cheddar cheese

In a large pot, boil potatoes with skins on until tender. Remove from heat, drain, and cool. Peel and slice potatoes. Layer potatoes and ham in a greased casserole baking dish and set aside. In a medium saucepan melt butter. Add onion and cook until golden. Blend in flour. Add milk gradually while stirring constantly. Add cream of chicken soup, celery salt, salt and pepper, and 1 cup grated cheese. Pour sauce over sliced potatoes. Bake uncovered on 375 for 35 minutes, remove sprinkle remaining 1 cup cheese over top and return to oven for an additional 10 minutes.