6 Medium potatoes, pared and sliced
3 Tablespoons butter
3/4 cup soft bread crumbs
1/2 Teaspoon paprika
1/8 Teaspoon Thyme
2 tablespoons flour
1 teaspoon dry mustard
1 teaspoon salt
1/8 tsp pepper
1 cup milk
2 cups ham, fully cooked and cubed
4 Slices processed American cheese
Cook potatoes in boiling water for 10 to 15 minutes, or until tender. Drain, reserving 1 cup cooking liquid. Place potatoes in a 8 or 9 inch baking dish with lid.
Melt 3 tablespoons butter. Remove 1 tablespoon butter; toss with soft bread crumbs, paprika,and thyme. Set crumbs aside.
Into remaining butter, flour, dry mustard, salt, and pepper. Add reserved cooking liquid and milk. Cook and stir until thickened and bubbly.
Stir in ham, and American cheese. Cook until cheese is melted. Pour sauce over potatoes. Sprinkle with crumbs. Cover and bake in 350 oven for 1 hour.