Jul 14 2026
Restaurants›The Osprey›Smash Burger Recipe

Smash Burger Recipe

Inspired by The Osprey
Time1h
Serves2

Classic double patty burger, American cheese, onion jam, fries

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Ingredients

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Burger Patties

Onion Jam

Fries

Burger Assembly

Method

Burger Patties

  1. 1

    Prepare the Patties

    In a mixing bowl, combine the ground beef with salt and black pepper. Divide the mixture into 2 equal portions and shape them into balls. Press each ball down to form patties that are slightly larger than the burger buns, as they will shrink while cooking.

  2. 2

    Cook the Patties

    Preheat a skillet or griddle over medium-high heat. Once hot, add the patties to the skillet. Cook for about 3-4 minutes on one side, then flip. Immediately place 2 slices of American cheese on each patty and cook for an additional 2-3 minutes, or until the cheese is melted and the patties are cooked to your desired doneness.

Onion Jam

  1. 3

    Cook the Onions

    Thinly slice the yellow onions. Heat olive oil in a pan over medium heat. Add the onions and a pinch of salt, cooking for about 10-15 minutes until they are soft and translucent.

  2. 4

    Make the Jam

    Add brown sugar and balsamic vinegar to the cooked onions. Stir to combine and continue cooking for another 10-15 minutes, stirring occasionally, until the mixture is thick and jam-like. Remove from heat and set aside.

Fries

  1. 5

    Prepare the Potatoes

    Wash and peel the potatoes. Cut them into sticks or wedges, about 1/4 inch thick. Rinse the cut potatoes in cold water to remove excess starch, then pat them dry with a paper towel.

  2. 6

    Fry the Potatoes

    In a deep pot or fryer, heat vegetable oil to 350°F (175°C). Carefully add the potato sticks in batches, frying for 4-6 minutes or until golden and crispy. Remove with a slotted spoon and drain on paper towels. Season with salt immediately.

Burger Assembly

  1. 7

    Assemble the Burger

    Toast the burger buns on the skillet for 1-2 minutes until lightly golden. Place one cheese-covered patty on the bottom bun, top with a generous spoonful of onion jam, then add the second patty on top. Finish with the top bun.

  2. 8

    Serve

    Serve the smash burger hot alongside the freshly made fries. Enjoy your delicious classic double patty burger!

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