Steak Sandwich with Caramelized Onions and Garlic Aioli Recipe
Introduction
This steak sandwich is a satisfying meal perfect for any time you crave something hearty and flavorful. Featuring tender sirloin, melted cheese, and sweet caramelized onions, all layered between crispy sourdough slices, it’s a delicious treat that’s easy to make at home.
Ingredients
- 1 pound sirloin steak, cooked to desired doneness and thinly sliced
- 8 slices thick-cut sourdough bread
- 4 slices Provolone or Pepper Jack cheese
- 1 cup caramelized onions
- ½ cup garlic aioli
- 4 tablespoons softened butter
Instructions
- Step 1: Heat a griddle or large skillet over medium-high heat.
- Step 2: Butter the outside of each bread slice. Place 4 slices of bread, buttered side down, on the griddle and top each with a slice of cheese.
- Step 3: Place the remaining 4 slices of bread, buttered side down, on the griddle and evenly divide the caramelized onions over them.
- Step 4: Cook for 3 to 4 minutes, until the cheese melts and the bread is golden and toasted. Cover with a lid if needed to help melt the cheese.
- Step 5: Spread garlic aioli over the melted cheese and top with sliced steak. Assemble the sandwiches by pairing the bread slices together, then remove from heat.
- Step 6: Transfer the sandwiches to a cutting board and cut in half to serve.
Tips & Variations
- For extra flavor, marinate the steak briefly in garlic and herbs before cooking.
- Swap Provolone for Swiss or mozzarella if you prefer a milder cheese.
- Add fresh arugula or baby spinach inside the sandwich for a peppery crunch.
- Use a panini press instead of a skillet for even grilling and melted cheese.
Storage
Store any leftover sandwiches wrapped tightly in the refrigerator for up to 2 days. Reheat gently in a skillet over low heat or in a toaster oven to keep the bread crisp and cheese melted. Avoid microwaving to prevent sogginess.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use a different cut of steak for this sandwich?
Yes, flank or ribeye steak also work well. Just cook and slice thinly against the grain for the best tenderness.
How can I make the caramelized onions?
Slowly cook sliced onions in a bit of oil or butter over low heat for 20–30 minutes, stirring occasionally, until they are soft and golden brown.
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Steak Sandwich with Caramelized Onions and Garlic Aioli Recipe
- Total Time: 25 minutes
- Yield: 4 sandwiches 1x
Description
This hearty Steak Sandwich features tender, thinly sliced sirloin steak layered with melted Provolone cheese, caramelized onions, and a flavorful garlic aioli, all toasted between thick-cut sourdough bread for a satisfying and delicious meal.
Ingredients
Sandwich Ingredients
- 1 pound sirloin steak, cooked to desired doneness and thinly sliced
- 8 slices thick-cut sourdough bread
- 4 slices Provolone cheese (or Pepper Jack cheese)
- 1 cup caramelized onions
- ½ cup garlic aioli
- 4 tablespoons butter, softened
Instructions
- Preheat the Griddle or Skillet: Heat a griddle or large skillet over medium-high heat until hot, preparing it for toasting the bread and melting the cheese.
- Prepare the Bread: Butter the outside of all eight slices of sourdough bread. Place four slices, buttered side down, onto the hot griddle. Top each of those slices with one slice of Provolone cheese.
- Add the Onions and Remaining Bread: Place the remaining four slices of bread, buttered side down, on the griddle separately. Evenly divide the caramelized onions over these slices of bread to prepare for sandwich assembly.
- Toast and Melt: Cook for 3-4 minutes until the bread is golden brown and the cheese has melted. If needed, cover the skillet with a lid to help melt the cheese evenly.
- Assemble the Sandwich: Spread garlic aioli generously over the melted cheese slices. Top each with the thinly sliced sirloin steak. Place the onions-topped bread slices on top to complete each sandwich.
- Serve: Remove the sandwiches from the heat. Transfer onto a cutting board and slice each sandwich in half before serving to enjoy immediately.
Notes
- For best results, cook the steak to your preferred doneness and slice thinly against the grain for tender bites.
- Caramelized onions can be prepared ahead of time and refrigerated to save time during assembly.
- If Provolone is unavailable, Pepper Jack cheese offers a spicy alternative that pairs well with steak.
- Use a lid when melting cheese to ensure thorough melting without burning the bread.
- Serve with a side of fries or a fresh salad to complete the meal.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Category: Lunch
- Method: Stovetop
- Cuisine: American
Keywords: Steak Sandwich, Sourdough Steak Sandwich, Caramelized Onion Steak Sandwich, Grilled Cheese Steak Sandwich, Provolone Cheese Sandwich
