Cheesy Potato Soup - Martin's Famous Potato Rolls and Bread

Ingredients

• 6 Slices Butter Bread
• 1/4 Cup Unsalted Butter
• 1 Cup Onions, diced
• 1 Cup Celery, diced
• 2 Tablespoons Garlic, minced
• 3 Cups Water
• 5 Potatoes, peeled and cubed
• 3 Ounces Cheddar, shredded
• 3 Ounces Smoked Mozzarella or Gouda, shredded
• 2 Tablespoons All-Purpose Flour
• 1-1/2 Cups Milk
• 1 Tablespoon Fresh Parsley, chopped