Crockpot Scalloped Potatoes

8 large potatoes, pared and sliced (I left the skin on)
1/2 cup (120 ml) butter or margarine
1/2 cup (120 ml) onions, chopped
1/3 cup (80 ml) flour
2 teaspoons (10 ml) salt
1/4 teaspoon (1.25 ml) pepper
3 cups (720 ml) milk

Place potatoes in bottom of crockpot.  Slice stick of butter
and spread over top of potatoes.  Layer onions on top of
butter.  Sprinkle flour, salt and pepper over onions.  Pour
milk over all.  Cook on low for 8 hours, or on high for 4
hours.  Stir occasionally.

Makes about 12 servings.