Smash burger with caramelized leeks, melted cheddar and a Big Mac‑style sauce recipe 6382 6b3cf57e-a431-47bc-9129-0d47b8cf7255 /media/mikn0g3c/smash-burger-poireaux-caramelises.jpg Sara Girard – Ma cuisine de tous les jours Sara Girard – Ma cuisine de tous les jours 9/25/2026 11:20:00 a.m. 0 0 35 4 2 Plats principaux BBQ-SPLIT-Comfort food-SPLIT-Serge's favourites-SPLIT-Bistro-SPLIT-Weekday recipes-SPLIT-Super Bowl Sandwiches, wraps and burgers Leeks
Smash burger with caramelized leeks, melted cheddar and a Big Mac‑style sauce

Smash burger with caramelized leeks, melted cheddar and a Big Mac‑style sauce

15
20
4
No
Ingredients

For the caramelized leeks:

  • 15 ml (1 tablespoon) of butter
  • 15 ml (1 tablespoon) of olive oil
  • 1/2 package of 250 g (2 cups) of Les Cultures de chez nous sliced leeks
  • 1.25 ml (1/4 teaspoon) of salt
  • 10 ml (2 teaspoons) of maple syrup
  • 15 ml (1 tablespoon) of water

For the smash burgers:

  • 1 lb (450 g) of lean ground beef
  • Salt and black pepper, to taste
  • 4 burger buns
  • 4 slices of yellow or white cheddar
  • 15 ml (1 tablespoon) of vegetable oil, as needed

For the Big Mac-style sauce:

  • 45 ml (3 tablespoons) of mayonnaise
  • 15 ml (1 tablespoon) of relish
  • 15 ml (1 tablespoon) of ketchup
  • 7.5 ml (1/2 tablespoon) of yellow mustard
  • 2.5 ml (1/2 teaspoon) of white vinegar
  • 2.5 ml (1/2 teaspoon) of smoked paprika
  • 1.25 (1/4 teaspoon) of garlic powder
  • 1.25 (1/4 teaspoon) of onion powder
Preparation
Side-by-side mode

For the Big Mac-style sauce:

  • In a bowl, combine all the ingredients for the Big Mac-style sauce. Set aside.

For the caramelized leeks:

  • Melt the butter with the oil in a large skillet over medium heat. Add the leeks and salt. Cook for 8 to 10 minutes, stirring regularly, until the leeks begin to soften

  • Add the maple syrup and water, then continue cooking for 10 to 15 minutes over medium-low heat, stirring regularly, until the leeks are very tender, golden and slightly sticky. Set aside

For the smash burgers:

  • In the same skillet, toast the buns on both sides. Set aside.

  • Divide the ground beef into 8 small portions of about 60 g (2 oz) each. Loosely shape into balls, without overpacking the meat.

  • Heat the same skillet used for the buns and leeks over medium-high heat. Using a sturdy spatula, smash the meat to form a very thin patty. Season with salt and pepper to taste.

  • Cook the patties for about 2 minutes, or until the underside is golden brown and crispy.

  • Gently flip the patties, then add a slice of cheddar and continue cooking for about 1 to 2 minutes, or until the cheese has melted.

  • Remove the patties from the skillet. Generously spread Big Mac-style sauce on the bun, add two patties, then the caramelized leeks.

  • Close the burger with the top bun and serve immediately.

Did you know that...

Did you know that...

Leeks contain large quantities of vitamins A, B1, B2, B3, B9 (folic acid) and C.

See the product

Smash burger with caramelized leeks, melted cheddar and a Big Mac‑style sauce

Ingredients

For the caramelized leeks:

  • 15 ml (1 tablespoon) of butter
  • 15 ml (1 tablespoon) of olive oil
  • 1/2 package of 250 g (2 cups) of Les Cultures de chez nous sliced leeks
  • 1.25 ml (1/4 teaspoon) of salt
  • 10 ml (2 teaspoons) of maple syrup
  • 15 ml (1 tablespoon) of water

For the smash burgers:

  • 1 lb (450 g) of lean ground beef
  • Salt and black pepper, to taste
  • 4 burger buns
  • 4 slices of yellow or white cheddar
  • 15 ml (1 tablespoon) of vegetable oil, as needed

For the Big Mac-style sauce:

  • 45 ml (3 tablespoons) of mayonnaise
  • 15 ml (1 tablespoon) of relish
  • 15 ml (1 tablespoon) of ketchup
  • 7.5 ml (1/2 tablespoon) of yellow mustard
  • 2.5 ml (1/2 teaspoon) of white vinegar
  • 2.5 ml (1/2 teaspoon) of smoked paprika
  • 1.25 (1/4 teaspoon) of garlic powder
  • 1.25 (1/4 teaspoon) of onion powder
Preparation
Side-by-side mode

For the Big Mac-style sauce:

  • In a bowl, combine all the ingredients for the Big Mac-style sauce. Set aside.

For the caramelized leeks:

  • Melt the butter with the oil in a large skillet over medium heat. Add the leeks and salt. Cook for 8 to 10 minutes, stirring regularly, until the leeks begin to soften

  • Add the maple syrup and water, then continue cooking for 10 to 15 minutes over medium-low heat, stirring regularly, until the leeks are very tender, golden and slightly sticky. Set aside

For the smash burgers:

  • In the same skillet, toast the buns on both sides. Set aside.

  • Divide the ground beef into 8 small portions of about 60 g (2 oz) each. Loosely shape into balls, without overpacking the meat.

  • Heat the same skillet used for the buns and leeks over medium-high heat. Using a sturdy spatula, smash the meat to form a very thin patty. Season with salt and pepper to taste.

  • Cook the patties for about 2 minutes, or until the underside is golden brown and crispy.

  • Gently flip the patties, then add a slice of cheddar and continue cooking for about 1 to 2 minutes, or until the cheese has melted.

  • Remove the patties from the skillet. Generously spread Big Mac-style sauce on the bun, add two patties, then the caramelized leeks.

  • Close the burger with the top bun and serve immediately.

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