Step 1

Add butter to a large pot on medium heat. Once melted, add onions and cook until soft, but make sure to not brown them.

Step 2

Add in celery, potatoes, salt, pepper, garlic powder, celery salt and boiling water. Cook for about 15 minutes on medium heat or until potatoes are softened.

Step 3

Reduce heat to medium low and add in milk and shrimp. Heat for about 5 to 7 minutes.

Step 4

Stir in parsley, Swiss cheese and cheddar cheese. Serve hot.