Elote Corn Chowder

Name: Elote Corn Chowder
Ingredients: 6 ears of corn (shucked); 1 teaspoon olive oil; 1 onion (chopped); 1 can green chilies; 4 garlic cloves (minced); 4 tablespoons unsalted butter; 4 tablespoons all purpose flour; 5 ¾ cups of half & half; ½ cup crema (plus extra for garnish); 2 teaspoons kosher salt; 1 ¼ teaspoon black pepper; 1 bay leaf; ½ teaspoon chili powder (plus extra for garnish); ½ teaspoon oregano; ¼ cup cilantro (garnish); ¼ cup crumbled cotija cheese (garnish); Cholula hot sauce (garnish); 2 limes (garnish)