Categories: Sandwiches/Wraps
Ingredients
- 1 1/2 lbs boneless sirloin steak
- Kosher salt and black pepper
- 1 tbsp olive oil
- 1 tbsp unsalted butter
- 2 sweet onions, sliced
- 1 tbsp fresh thyme
- 1/3 cup chicken broth
- 4 sub rolls, split
- 2 cups shredded Gruyere cheese
- 1 pint pickled or marinated vegetables
Directions
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Preheat the broiler. Generously season the steak with salt and pepper. Heat the olive oil in a large skillet over high heat. Add the steak and cook until browned, about 4 minutes per side for medium rare. Transfer to a cutting board and let rest.
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Pour off any excess fat from the skillet and reduce the heat to medium. Melt the butter in the skillet, then add the onions, thyme, 1/2 tsp salt and a few grinds of pepper. Cook, stirring occasionally, until the onions start caramelizing, about 10 minutes. Stir in the chicken broth and cook until slightly reduced, about 5 minutes.
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Meanwhile, trim off any excess fat from the steak; thinly slice against the grain. Put the rolls cut-sides up on a baking sheet and broil until toasted, about 2 minutes.
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Remove the roll tops to a plate. Divide the onion mixture among the roll bottoms, top with the steak and sprinkle with the Gruyere. Return to the broiler until the cheese is melted but not browned, 3-5 minutes. Top with the toasted roll tops and serve with the pickled vegetables.