Scalloped Potatoes

6-8 russet potatoes cooked and sliced
6 T butter
6 T flour
4 c milk
3 t salt
Garlic powder
2 1/4 c grated cheese
Parsley

Slice potatoes that have been cooked and peeled. Season with salt, pepper and garlic powder. Melt butter and flour in sauce pan until bubbles. Gradually add milk until mixtrue thickens over low heat. Add Salt Stir in 1/4 cup grated cheese into milk. Pour mixture over potatoes, toss until coated. Put into 9 x 13 dish. Sprinkle parsley and 2 more cups of cheese on top and bake at 350 until sauce is bubbly.