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Dairy Free Onion Sauce

Dairy Free Onion Sauce a delicious, creamy side dish to go with any Sunday roast.  Equally great with a Roast Chicken or Vegan roast.  Its also really good as the base sauce for a vegan pie or lasagna. Easy to make with only a few ingredients.  All you need are onions, dairy free cream and cornflour.  Its even better cold in sandwiches the next day! Gluten Free, Vegan and suitable for coeliacs.
Prep Time5 mins
Cook Time15 mins
Total Time20 mins
Course: Sunday Lunch
Cuisine: British
Keyword: Creamy Onion Gravy, Sunday Lunch, Sunday Roast, Vegan Onion Sauce
Servings: 5 Servings
Author: Midge @ Peachicks' Bakery


  • 1 Onion
  • 250 ml Dairy Free Cream (Oat, Soya, Coconut)
  • 1 tbsp Cornflour
  • 1 tsp Cooking Oil
  • Salt/Pepper to taste


  • First chop onion into thin ribbons or small dice and add to pan with olive oil.  Cook until soft. 
  • Pour in the dairy free cream and turn the heat to low. In a little bowl mix the cornflour with enough of the liquid from the pan to make a smooth paste. A couple of tablespoons of liquid is usually enough.
  • Add the paste to the pan and stir into sauce. It shouldn't take long to thicken the sauce but the cornflour will need cooking for a few minutes otherwise your sauce with be all floury when you taste it and that's just not nice!
  • Add salt and pepper to taste. We like lots of pepper and very little salt!
    In the unlikely event there is any sauce left Daddy Peacock recommends it cold in a roast meat leftover sandwich. Apparently it's his favourite part of being at work on a Monday!