French Burger Recipe

Form patties

Divide the ground beef into two equal portions (about 8 oz each). Gently form each portion into a slightly wider-than-bun patty about 3/4-inch thick. Do not overwork the meat to keep it tender.

Season both sides of each patty with the 1 tsp salt and 1/2 tsp black pepper. Press a shallow dimple in the center of each patty with your thumb to help it cook evenly.

Heat a heavy skillet or cast-iron pan over medium-high heat until very hot. Add 1 tablespoon softened butter and let it foam. Add patties and cook without moving until a brown crust forms, about 3–4 minutes.

Flip patties and cook the other side 2–3 minutes for medium (adjust time for desired doneness). In the last 1 minute of cooking, place a slice of cheese on each patty, cover the pan with a lid to melt the cheese.

Remove patties to a warm plate and tent loosely with foil to rest while finishing other components.

While patties cook, start the onion confit: heat 1 tbsp olive oil and 1 tbsp butter in a medium skillet over medium-low heat.

Add the sliced onions, 1/2 tsp sugar, 1/2 tsp salt, and 1/4 tsp pepper. Stir to coat and spread in an even layer. Cook gently, stirring every 3–5 minutes, until onions are deeply golden and very soft, about 25–30 minutes. If the pan dries out or onions risk burning, add 1–2 tbsp water to deglaze.

When onions are jammy and caramelized, stir in 1 tsp red wine vinegar and adjust seasoning to taste. Keep warm until assembly.

Split the buns and butter cut sides with 1 tbsp butter total. Toast cut sides in a skillet over medium heat until golden brown, about 1–2 minutes per side.

Optionally, spread a thin layer of Dijon mustard and mayonnaise on the bottom bun before assembling.

If frying: heat vegetable oil in a heavy pot to 325°F (160°C). Blanch the cut potatoes in batches until tender but not browned, about 4–6 minutes. Remove and drain. Increase oil to 375°F (190°C) and fry until golden and crisp, 2–3 minutes. Drain on paper towels and immediately season with 3/4 tsp salt.

If using an air fryer: toss the cut potatoes with 1 tsp oil, air-fry at 380°F (195°C) in a single layer for 18–22 minutes, shaking halfway, until crisp. Season with 3/4 tsp salt.

Keep fries warm while finishing burgers.

Spread Dijon mustard and mayonnaise (1 tsp each) on bottom bun if not done earlier. Place the cheese-melted patty on the bottom bun.

Pile 2–3 tablespoons of warm onion confit over the melted cheese, add cornichon or pickle slices, then place the top bun.

Serve immediately with a generous portion of French fries on the side and a sprinkle of chopped parsley over fries or onion confit if desired.