Grilled Goat Cheese Burger with Onion Jam and Toasted Walnuts

PREPARATION

• 1
  For the onion jam, peel and thinly slice or grate the onion.
• 2
  Sauté it in a little oil, season with salt and sugar, add the vinegar and star anise, then cook until jam-like.
• 3
  For the vinaigrette, mix the mustard and 0.5 dl olive oil with an immersion blender, and season with a pinch of salt and sugar, or a spoonful of honey.
• 4
  Fry the goat cheese slices in a little oil in a non-stick or grill pan until golden brown, or you can grill them.
• 5
  Toast the walnuts in a dry pan until fragrant.
• 6
  After the cheese, toast the buns as well.
• 7
  Assemble your burger: place the onion jam on the bottom, then the cheese, followed by the arugula thoroughly mixed with the vinaigrette, and finally the toasted walnuts.

KIFLI TIP

• 1
  You can also add red wine to the onion jam; in this case, reduce it until it becomes almost syrupy.
• 2
  Any grillable cheese can be used instead of goat cheese, and the sandwich is perfect even in a baguette.