Scalloped Potatoes - cooking recipe

Ingredients

3 Tbsp. butter
2 Tbsp. all-purpose flour
1 1/2 tsp. salt
3 c. milk
6 medium potatoes, thinly sliced
2 Tbsp. chopped onion

Preparation

Make white sauce of first 5 ingredients. Place half the potatoes in greased 2-quart casserole; cover with half the onion and half the sauce. Repeat layers. Cover and bake at 350\u00b0 about 1 hour. Uncover and bake another 30 minutes.
Serves 4 to 6.