Delicious easy onion sauce

Delicious easy onion sauce


59 people made this

About this recipe: This always goes down well with my family. I always make it at Christmastime, but also throughout the year when cooking white meats. It's also welcomed by my vegetarian family/friends.

fattybelly Staffordshire, England, UK

Serves: 6 

  • 1 large onion, chopped into small pieces
  • 300ml (1/2 pint) milk
  • 1 heaped teaspoon Dijon mustard
  • 30g (1 oz) butter
  • 1 tablespoon cornflour
  • salt (if required to taste)
  • black pepper

Prep:5min  ›  Cook:30min  ›  Ready in:35min 

  1. Chop the onion into small pieces (saving some of the onion near to the root). Add to a pan of boiling water and boil on a moderate heat for approximately 15 minutes to soften slightly.
  2. Melt the butter in a saucepan, and when melted add the cornflour and stir into a thick 'paste'.
  3. Slowly add the milk a little at a time stirring continually to combine with the 'paste'.
  4. When the onions are cooked add them to this white sauce. Add the Dijon mustard, black pepper and salt (to taste), turn down heat and continually stirring, cook until sauce thickens.
  5. Remove saucepan from heat and grate the remaining onion into the sauce, this will give it a stronger flavour.

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Reviews (5)


Something else. Stir in the Dijon mustard to taste at the end. - 07 Feb 2011


- 07 Feb 2011


This is an excellent recipe. The addition of mustard makes all the difference. I didn't have and Dijon mustard so had to use English instead. It was easy to make and tasted wonderful on a home made toad in the hole. Very moreish? - 21 Feb 2013

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