In a large pot, add 5 cups water, bouillon, chopped potatoes, onion, and celery. Cook over medium heat until water starts to boil. Cover and cook on low heat about 25 minutes, or until potatoes are thoroughly cooked.
Add milk, mexi-corn, salt, garlic salt, and pepper. Note: If you cannot find Mexi-corn, canned sweet corn works great too!
Simmer for 10 -15 minutes and serve. This is when I add hot sauce/chili powder, according to taste.
NOTE: Chicken or vegetable broth may be substituted for water and bouillon.