Are you ready to transform an ordinary lunch into a gourmet experience that will make your taste buds dance? These Steak Caramelized Onion Sandwiches are not just a meal—they're a flavor explosion waiting to happen! Imagine tender, perfectly cooked flank steak, nestled between soft hoagie rolls, crowned with sweet, golden caramelized onions and melted provolone cheese that stretches with every bite. This isn't just a sandwich; it's a culinary masterpiece that will elevate your home cooking game and impress even the most discerning food lovers.
Prep Time: 10 mins
Cook Time: 30 mins
Total Time: 40 mins
Cuisine: American
Serves: 4 servings
Ingredients
- 1 lb flank steak
- 2 large onions, thinly sliced
- 4 hoagie rolls
- 2 tbsp olive oil
- Salt and pepper to taste
- 1 cup provolone cheese, shredded
Instructions
- Remove the flank steak from the refrigerator 30 minutes before cooking to allow it to come to room temperature. Pat the steak dry with paper towels and season generously with salt and pepper on both sides.
- Heat 1 tablespoon of olive oil in a large skillet over medium-low heat. Add the thinly sliced onions and cook slowly, stirring occasionally, for about 20-25 minutes until they become deeply golden brown and caramelized. Season with a pinch of salt midway through cooking.
- While the onions are caramelizing, heat a cast-iron skillet or grill pan over high heat. Add the remaining 1 tablespoon of olive oil and heat until it's almost smoking.
- Cook the flank steak for 4-5 minutes on each side for medium-rare, or adjust cooking time to your preferred doneness. Use a meat thermometer to check internal temperature (125°F for medium-rare).
- Remove the steak from the heat and let it rest on a cutting board for 5-7 minutes to allow the juices to redistribute.
- Slice the hoagie rolls and lightly toast them if desired. Slice the rested steak thinly against the grain to ensure tenderness.
- Assemble the sandwiches by layering the sliced steak on the rolls, topping with caramelized onions and sprinkle generously with shredded provolone cheese.
- Optional: Place assembled sandwiches under the broiler for 1-2 minutes to melt the cheese and create a golden, bubbly top.
- Slice the sandwiches in half and serve immediately while warm, with extra napkins for the juicy, delicious mess.
Tips
- Temperature is Key: Always let your steak rest at room temperature before cooking to ensure even cooking and maximum tenderness.
- Patience with Onions: Caramelizing onions takes time—don't rush the process. Low and slow is the secret to achieving those rich, sweet, golden-brown onions.
- Slice Against the Grain: When cutting your steak, always slice perpendicular to the muscle fibers to guarantee the most tender, melt-in-your-mouth texture.
- Cheese Melting Hack: For the ultimate cheesy finish, briefly broil your assembled sandwiches to create a golden, bubbly cheese topping.
- Meat Temperature Guide: Use a meat thermometer for perfect doneness—125°F for medium-rare, 135°F for medium, or adjust to your preference.
Nutrition Facts
Calories: 515kcal
Carbohydrates: g
Protein: 37g
Fat: 23g
Saturated Fat: g
Cholesterol: 75mg

