Steak Sandwich with Caramelized Onions

A Steak Sandwich with Caramelized Onions is the ultimate combination of tender, juicy steak, sweet caramelized onions, and creamy garlic aioli, all served on a toasted roll with melted cheese. Whether for lunch, dinner, or game day, this sandwich is packed with bold flavors and satisfying textures.

Why You’ll Love This Steak Sandwich

• Rich & Savory – Juicy steak pairs perfectly with sweet caramelized onions and melted cheese.
• Restaurant-Quality at Home – A gourmet sandwich made easily in your kitchen.
• Customizable – Swap the cheese, use different bread, or add extra toppings for your own twist.

Ingredients for the Perfect Steak Sandwich

For the Sandwich:

• 1 lb steak (ribeye, sirloin, or flank)
• 4 hoagie rolls or baguettes, split
• 2 cups mixed greens (optional)
• 4 slices provolone or Swiss cheese

The Caramelized Onions:

• 2 large yellow onions, thinly sliced
• 2 tablespoons butter
• 1 tablespoon olive oil
• 1 teaspoon sugar (optional)
• ½ teaspoon salt

For the Garlic Aioli:

• ½ cup mayonnaise
• 1 clove garlic, minced
• 1 teaspoon lemon juice
• ¼ teaspoon black pepper

Step-by-Step Directions

1. Prepare the Steak

1. Season the steak with salt and black pepper.
2. Heat a grill or skillet over medium-high heat.
3. Cook steak for 3–4 minutes per side for medium-rare, or to your preferred doneness.
4. Let the steak rest for 5 minutes, then slice thinly against the grain.

2. Caramelize the Onions

1. Heat butter and olive oil in a skillet over medium heat.
2. Add sliced onions and cook, stirring frequently, for 15–20 minutes until golden brown and caramelized.
3. Add sugar and salt for enhanced sweetness, if desired.

3. Make the Garlic Aioli

1. In a small bowl, mix mayonnaise, minced garlic, lemon juice, and black pepper.
2. Set aside until ready to assemble.

4. Assemble the Sandwich

1. Lightly toast the hoagie rolls or baguettes.
2. Spread garlic aioli on both sides of each roll.
3. Layer mixed greens (if using), sliced steak, caramelized onions, and a slice of cheese.

5. Melt the Cheese (Optional)

1. Place the assembled sandwiches in a preheated oven or under a broiler for 1–2 minutes, until the cheese is melted.

6. Serve and Enjoy

1. Serve immediately with fries, a crisp salad, or roasted vegetables.
2. Enjoy this rich and hearty steak sandwich!

Tips for the Best Steak Sandwich

1. Choose the Right Cut of Steak – Ribeye, sirloin, or flank steak work best for tenderness and flavor.
2. Slice Against the Grain – This ensures tender, easy-to-bite steak pieces.
3. Don’t Rush the Onions – Slow-cooked onions bring out natural sweetness and richness.
4. Customize It – Add roasted peppers, avocado, or swap the cheese for blue cheese or cheddar.

What to Serve with a Steak Sandwich

Pair this sandwich with delicious sides:

• Crispy French fries
• Sweet potato fries
• Coleslaw
• Caesar salad
• Garlic butter roasted potatoes

More Steak & Sandwich Recipes to Try

Looking for more flavorful recipes? Try these:

• Garlic Butter Ribeye Steak
• Classic BLT Sandwich
• Country Fried Steak with Gravy

For even more delicious ideas, visit our Pinterest page.

Make-Ahead and Storage Tips

• Make Ahead: Cook the steak and caramelized onions up to 2 days in advance and store separately in the fridge.
• Reheating: Warm the steak and onions in a skillet over low heat before assembling.
• Freezing: Not recommended, as the texture of steak and onions can change.

Nutritional Information (per serving)

• Calories: 520 kcal
• Protein: 38 g
• Carbohydrates: 35 g
• Fat: 28 g
• Saturated Fat: 10 g
• Sugar: 6 g
• Sodium: 850 mg
• Fiber: 3 g
• Cholesterol: 90 mg

Conclusion

The Steak Sandwich with Caramelized Onions is a restaurant-quality meal that’s easy to make at home. With juicy steak, flavorful onions, and creamy garlic aioli on a toasted roll, every bite is packed with bold flavors.

Save this recipe and try it today! Don’t forget to pin it on Pinterest for easy access.

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