Gluten & Dairy Free White Sauce

This is a quick and easy recipe of gluten & dairy free White Sauce or Roux. Use it in lasagna, as a base for other sauces or as a creamy pasta sauce.

Making the sauce allergy friendly

  • Gluten Free: To thicken the sauce I used cornflour but it can be substituted for gluten free flour.
  • Dairy Free: There are two ingredients used for dairy alternatives.
    • Cheese: I used vegan cheddar style shreds.
    • Milk: I used coconut milk and can be changed to your choice of dairy free alternative milk

Thickening the gluten free white sauce

I used corn starch to thicken the sauce but corn starch does not give body to the sauce as a flour would do. Also a lot of people are allergic to corn so gluten free all purpose flour can be used although it might not thicken the sauce as corn starch will do. It can still be a little watery.

What flavor of dairy free cheese to use

I have used cheddar cheese because my kids like cheddar more than any other flavor but you can use any flavor you like, for example, mozzarella.

Seasoning the sauce

Apart from the basic salt and pepper, you can also use other spices such as chili powder, to make it spicy. Also use your favourite herbs.

Storing the sauce

You can store the sauce in airtight container for one week. The sauce can also be frozen and used when needed.

How do you reheat the gluten and dairy free sauce?

The sauce can be reheated in the microwave or stove. To heat in the microwave, place the sauce in a microwave safe dish and heat for 2 minutes until warmed through. To heat in the stove, bring the sauce to a boil and simmer for about 5 minutes.

Try the sauce with these recipes!

Gluten & Dairy Free White Sauce

Course: SaucesCuisine: ItalianDifficulty: Easy


Cooking time





Gluten Free & Dairy Free White Sauce – Roux. Made with corn flour and coconut milk. Very easy and quick to make and adapt to your taste.


  • 2 tablespoons dairy free butter

  • 1 tablespoon corn flour/gluten free all purpose flour

  • 2 cups dairy free milk

  • 1 cup water

  • 1 bay leaf

  • 1/4 tsp nutmeg powder

  • salt & pepper, to taste

  • 1/2 cup dairy free cheese shreds


  • Heat 2 tablespoons dairy free butter on medium heat.  melting a tablespoon of dairy free butter in a pot
  • Once the butter has melted, add gluten free flour, if using, cook until it starts bubbling (for corn starch see notes below)cooking the gluten free flour
  • Pour dairy free milk and add a bay leaf then let it come to a boiladding in the dairy free milk and bay leaf
  • Once the sauce becomes thick, add nutmeg and seasoning to your taste.adding the nutmeg to the dairy free sauce
  • Now add the dairy free cheese and stir to mix. Sauce is ready to be used.

Recipe Video

Cook’s Notes

  • Corn Starch: dissolve in some water and add it after step 3.
  • Substitute gluten free flour for corn starch for corn free sauce

Nutrition Facts

10 servings per container


  • Amount Per Serving% Daily Value *
  • Total Fat 4g 7%
    • Saturated Fat 2g 10%
  • Sodium 101mg 5%
  • Amount Per Serving% Daily Value *
  • Potassium 19mg 1%
  • Total Carbohydrate 4g 2%
    • Sugars 2g
  • Vitamin A 4%
  • Calcium 3%
  • Iron 2%

* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

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