Recipes: Steak sandwiches with crispy onions

Preparation:    Preparation time: 45 mins Cooking time: 15 mins Serving: 6 Ingredients: 1 large sweet onion 3 cups buttermilk 2 cups minced fresh cilantro 1 cup minced fresh parsley 2 garlic cloves, minced 1/2 teaspoon plus 2 teaspoons salt, divided 1/4 teaspoon pepper 1/2 cup mayonnaise 1/2 cup plus 3 tablespoons olive...