Creamy Corn Chowder

Name: Creamy Corn Chowder
Ingredients: 8 Slices Bacon, (Cooked & Crumbled, OPTIONAL); 2 Pounds Red Potatoes (about 4 medium), (Washed and cut into 1/2-1 inch chunks); 2 Tablespoons Butter; 1 Large Onion, (Diced); 3 Cloves Garlic, (Minced); 3 Cups Corn Kernels**; Salt & Pepper, (To Taste); 2 teaspoons Italian Seasoning; 1/4 teaspoon Celery Salt; 1/4 teaspoon Ground Mustard; 1/8 teaspoon Cayenne Pepper, (Optional); 4 Cups Chicken Broth; 1/2 Cup Sour Cream; 1 Cup Half & Half, Cream, or Whole Milk; 2 Tablespoons Corn Starch; 1 Cup Shredded Cheddar Cheese, (Optional)