French Onion Burgers With Oven Fries and Dijon Gravy
Ready In: 2 hrs
Serves: 4
Ingredients
- 4 large baking potatoes, scrubbed and dried
- 7 garlic cloves (4 crushed, 3 finely chopped)
- 1⁄2 cup extra virgin olive oil
- salt
- black pepper
- 4 tablespoons butter
- 2 large onions, thinly sliced
- 1 bay leaf
- 1 teaspoon ground thyme
- 1⁄2 cup dry sherry
- 2 lbs lean ground sirloin
- 3 tablespoons Worcestershire sauce
- fresh flat leaf parsley, a generous handful, finely chopped
- 1 large shallot, finely chopped
- 2 tablespoons all-purpose flour
- 2 cups beef stock
- 2 tablespoons Dijon mustard
- 8 slices fat French bread (1-inch thick slices)
- 1⁄2 lb gruyere cheese, shredded
- 2 romaine lettuce hearts, chopped
- 1 lemon, juice of
Directions
- Preheat the oven to 425°.
- Halve the potatoes lengthwise, then cut each half into 5 thin wedges.
- Place the potatoes and 4 crushed garlic cloves on a rimmed baking sheet and coat with about 3 tablespoons extra virgin olive oil.
- Season liberally with salt and pepper and roast for 45 minutes, turning once, until deeply golden in color and crispy.
- Once the fries have had a 15-minute head start, heat a skillet over medium heat with 1 tablespoon of the oil and 2 tablespoons of the butter.
- Add the onions, chopped garlic, bay leaf, thyme, salt, and pepper.
- Cook until the onions caramelize, 20 minutes or so.
- Add the sherry and deglaze the pan, scraping up any bits from the bottom, and cook for a couple of minutes longer.
- While the onions are cooking, preheat a grill pan or large skillet over med-high heat.
- In a bowl, combine the sirloin with the Worcestershire sauce, parsley, salt, and pepper.
- Divide the mixture into 4 portions, then form each portion into a large patty.
- Coat the patties in a little oil and cook for 5 minutes on each side for pink centers, a minute or so less for rare and 2 minutes longer for well done.
- Melt 2 tablespoons of the butter in a small saucepan over medium heat.
- Add the shallots and cook for 2-3 minutes, then whisk in the flour and cook for another minute.
- Whisk in the stock and cook, stirring, for a couple of minutes to thicken.
- Season the gravy with pepper and stir in the Dijon mustard; set aside.
- When the fries have cooked about 40 minutes, turn the oven to broil.
- Place the bread on a baking sheet and toast on both sides 6 inches from broiler until lightly golden.
- Set 4 pieces of bread aside, then mound the gruyere onto the remaining bread rounds, just like the large croutons that top French onion soup; return to the oven to melt the cheese, 1-2 minutes.
- Dress the greens with the lemon juice, the remaining 3 tablespoons of oil, and salt and pepper.
- Place the burgers on the plain toasts and top with mounds of the French onions.
- Take the cheesy bread and set in place on top of the onions, cheesy side down.
- Serve greens on the side; serve the fries piled high on a platter and pour the gravy over them, or pour the gravy in a bowl and dip as you go.
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