Jul 14 2026
Restaurants›Grand Trunk Pub›Trunk Burger Recipe

Trunk Burger Recipe

Inspired by Grand Trunk Pub
Time50m
Serves2

Double 1/4 lb smash patties, caramelized onions, American cheese & applewood smoked bacon on a brioche bun

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Ingredients

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Burger Patties

Caramelized Onions

Method

Prepare the Caramelized Onions

  1. 1

    Cook the Onions

    In a large skillet, heat the butter and olive oil over medium heat. Add the thinly sliced onion and a pinch of salt. Cook for about 20-25 minutes, stirring occasionally, until the onions are soft and caramelized. Remove from heat and set aside.

Cook the Bacon

  1. 2

    Fry the Bacon

    In the same skillet (or a separate one), cook the applewood smoked bacon over medium heat until crispy, about 6-8 minutes. Remove and place on paper towels to drain excess fat.

Make the Burger Patties

  1. 3

    Form the Patties

    Divide the ground beef into two equal portions (about 1/4 lb each) and gently shape them into balls. Do not overwork the meat.

  2. 4

    Smash the Patties

    Preheat a large skillet or griddle over high heat. Place the beef balls in the skillet and immediately smash them down with a spatula to form thin patties. Season with salt and black pepper. Cook for about 3-4 minutes until a crust forms, then flip and top each patty with a slice of American cheese. Cook for an additional 1-2 minutes until the cheese melts.

Assemble the Burger

  1. 5

    Build the Burger

    Toast the brioche buns lightly on the skillet. On the bottom half of each bun, layer a cheese-topped patty, followed by some caramelized onions and two slices of bacon. Place the top half of the bun on each burger.

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