Print

Savory Caramelized Onion Steak Sandwich

Savory Caramelized Onion Steak Sandwich

A Savory Caramelized Onion Steak Sandwich that combines tender, juicy steak with sweet, caramelized yellow onions, fresh herbs, and melted cheese, all layered on a toasted sturdy bun. This sandwich delivers a perfect balance of rich, sweet, and savory flavors with a satisfying texture, ideal for a hearty lunch or an impressive weekend meal.

Ingredients

Steak and Seasonings

  • Ribeye or sirloin steak (about 8 ounces per sandwich)
  • Salt and pepper, to taste
  • Fresh herbs such as thyme or rosemary, chopped (1-2 teaspoons)
  • Garlic (1-2 cloves, minced)
  • Olive oil (2 tablespoons)

Caramelized Onions

  • Yellow onions (2 large, thinly sliced)
  • Butter (2 tablespoons)
  • Olive oil (1 tablespoon)

Sandwich Assembly

  • Cheese slices (Provolone or Swiss, 1-2 slices per sandwich)
  • Fresh sandwich rolls or baguette (1 per sandwich)
  • Optional: garlic aioli or fresh herbs for garnish

Instructions

  1. Prepare the Onions: Thinly slice yellow onions. In a heavy skillet over medium-low heat, heat butter and olive oil. Slowly cook the onions, stirring occasionally, until golden brown and caramelized, about 30-40 minutes. Patience is key to develop deep, sweet flavor.
  2. Season and Cook the Steak: While onions cook, pat steak dry and season generously with salt, pepper, and freshly chopped thyme or rosemary. Heat a pan over high heat with olive oil until very hot. Sear steak 3-4 minutes per side for medium-rare, depending on thickness. Remove and let rest before slicing thinly against the grain.
  3. Toast the Bread: Slice sandwich rolls or baguette and toast lightly in a hot skillet with a little butter or under the broiler until golden and crisp inside to provide a sturdy base.
  4. Assemble Your Sandwich: Layer toasted bread with steak slices, a thick mound of caramelized onions, and cheese slices. Optionally, melt cheese slightly by returning assembled sandwich to pan for 1-2 minutes. Finish with fresh herbs or a smear of garlic aioli for extra flavor.

Notes

  • Don’t rush caramelizing onions; slow cooking develops natural sweetness.
  • Allow steak to rest after cooking to retain juiciness and tenderness.
  • Slice steak thinly against the grain for the most tender bites.
  • Use a hot pan for a great sear and enhanced steak flavor.
  • Cover skillet briefly when melting cheese to avoid overcooking steak.
  • Choose sturdy bread like rolls or baguette to prevent sogginess.

Nutrition

Keywords: steak sandwich, caramelized onion, savory sandwich, ribeye sandwich, sirloin sandwich, comfort food, quick sandwich