Southwest Corn Chowder

Name: Southwest Corn Chowder
Ingredients: 4 ears corn on the cob (or 1 15-ounce can yellow corn, drained); 2 tablespoons butter; 1 pound baby gold potatoes (quartered); 1 tablespoon minced garlic; ½ yellow onion (diced); 2 cups chicken broth (I used low sodium); 4 cups half and half (I used Fat Free); 1-2 teaspoons salt (to taste); ½ teaspoon cracked black pepper (or to taste); ½ teaspoon chili powder (chipotle chili powder if you have it!); 1 8-ounce cans diced green chiles (including liquid); 2 tablespoons flour; 1 cup heavy cream