Lyonnaise Onions

Basic Recipe 56

Preparation info

  • Difficulty


  • Makes

    300 g

Appears in

Season to Taste

By Liam Tomlin

Published 2005

  • About


  • 1.5 kg Brown onions
  • 75 g Unsalted butter
  • Salt
  • Freshly ground pepper


Peel the onions, cut in half and slice as thinly as possible. Melt the butter in a heavy-based saucepan; when foaming, add the onions and cook for 2½–3 hours over a very low heat until all the juice has evaporated. The onions will caramelise and take on a deep, golden brown colour. Season to taste with salt and freshly ground pepper. If not using immediately, spread the onions on a tray and refrigerate to cool. Reheat over a very low heat when ready to use. Adjust the seasoning if necessary.