French onion cheeseburger
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French onion cheeseburger

By Esther Clark

Try a sweet, cheesy take on a burger with this French onion cheeseburger made with gruyère, brioche bun and caramelised onions

  • Prep:10 mins
    Cook:25 mins
  • Serves 2
  • Easy

Nutrition per serving

  • kcal 700
  • fat 41g
  • saturates 18g
  • carbs 51g
  • sugars 17g
  • fibre 5g
  • protein 29g
  • salt 2.4g

Ingredients

  • 2 tbsp butter
  • 1 tbsp oil
  • 1 onion, thinly sliced
  • ½ tbsp light brown soft sugar
  • 1 tsp cider vinegar
  • 1 tbsp wholegrain mustard
  • 2 beef burgers
  • 2 slices gruyère
  • 2 brioche buns
  • 2 handfuls watercress

Method

  1. Put the butter and oil in a large non-stick frying pan. Add the onion and fry over a medium heat for 15 mins or until golden and sticky. Stir through the light brown soft sugar, cider vinegar and wholegrain mustard. Heat the grill to medium-high. Put the beef burgers on a baking sheet and grill on each side for 5-8 mins or until cooked through. For the last minute, top the burgers with the gruyère and grill until bubbling and melted. Lightly toast the brioche buns. Top the buns with the burgers, then the sticky onions and divide the watercress between each.

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