In Dutch oven sauté onion slices in hot butter until tender. Add boiling water,
then potatoes, salt and pepper. Simmer, covered, for 20 minutes or until potatoes
are tender. Do not drain.
Meanwhile, heat milk with cheese until cheese is melted and milk is hot, but
NOT boiling. Add shrimp to potatoes and cook until they are pink (3 minutes). This
is for raw shrimp. Add hot milk and cheese mixture. Heat, but do not boil.