Steak Sandwiches with Crispy Onions Recipe: How to Make It

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 oil, divided
• 1 beef flat iron steak or top sirloin steak (1-1/2 pounds)
• 1-1/2 cups all-purpose flour
• 3 tablespoons taco seasoning
• Oil for deep-fat frying
• 12 slices Italian bread (1/2 inch thick)
• Optional: Fresh arugula and sliced tomato