Chipotle Chile Corn Chowder

Name: Chipotle Chile Corn Chowder
Ingredients: 4 whole Ears Of Sweet Corn, Leaves And Silk Removed; 1 Tablespoon Butter; 1 whole Sweet Onion, Diced; 1 can (4 1/2 Oz. Size) Diced Green Chilis; 3 Tablespoons Chipotle Chili Powder (or Ancho Chili Powder If You Prefer); 3 cups Peeled And Diced Russet Potato; 7-½ cups Low Sodium Chicken Broth; 2 Tablespoons Salt; Canola Oil, For Frying; 2 whole 8 Inch Tortillas Cut Into Thin Strips; 1 cup Heavy Cream; 1 cup Grated Aged Cheddar; 1 cup Sour Cream