White onion jam

Preparation info
  • Serve

    4

    • Difficulty

      Easy

Appears in
Burgers: From Barbecue Ranch Burger to Miso Salmon Burger

By Paul Gayler

Published 2014

  • About

Ingredients

  • 45 ml olive oil
  • 15 g unsalted butter
  • 2 onions

Method

  • Heat the oil and butter in a pan, add the onions, sugar and thyme; cook over a low heat for 10-12 minutes until golden, soft and caramelised.
  • Add the vinegar, cook for a further 10 minutes until the onions take on a sweet and sour flavour, remove, season to taste and allow to go cold.