1  pound Ham sliced
        2  pounds potatoes (about 6 medium)
        3  tablespoons olive oil
        4  tablespoons flour
    1/4  teaspoon pepper
2-1/2  cups milk
        1  onion, finely chopped (about 1/2 cup)

Wash potatoes and remove eyes.   Cut into thin slices.   Place potatoes in a saucepan covered with water, bring just to a boil, drain.
   Heat olive oil in saucepan over low heat until hot.  Stir in flour and pepper.  Cook over low heat, stirring constantly, until mixture is smooth and bubbly; remove from heat. Slowly stir in milk.  Heat to boiling, stirring constantly.  Boil and stir 1 minute.
    In Slow cooker arrange ham and potatoes in 3 layers, topping the first 2 layers with half the onions and 1/3 the white sauce.  Top third layer with remaining sauce.
   Cook on high for 1 hour or until white sauce is bubbling, turn down to low for additional 3 hours.
Yield: 6 servings.