4 ears sweet corn, shucked
1 tablespoon olive oil
½ pound (about 6 slices bacon), finely chopped
1 small onion, peeled and chopped
2 cloves garlic, peeled and minced
4 cups chicken broth
2 large potato, peeled and cubed
1 bay leaf
¼ teaspoon cayenne pepper
salt and freshly-ground pepper to taste
1½ cups milk
⅓ cup flour
½ cup green onions, chopped