How to Make Cheese Sauce in the Microwave

How to Make Cheese Sauce in the Microwave


Servings 4
Time Needed Prep
Ingredients 11
Difficulty Easy

Rating (click to rate)

3.5 based on 62 ratings.


  • Microwave Cheese Sauce
  • 1 tbsp Butter
  • 1 tbsp Flour
  • 1 cup Milk
  • 1 cup Cheese (grated)
  • Onion Sauce
  • 1 Onion
  • 1 tbsp Butter
  • 1 tbsp Cornflour
  • 1/2 cup Milk
  • 1 Cup Water

Nutrition Information

Qty per
321g serve
Qty per
Energy 58.43125kcalcal 18.208893107312kcalcal
Protein 1.92625gg 0.60027605686955gg
Fat (total) 0.43375gg 0.13516923538854gg
 - saturated 0.105gg 0.032721082918263gg
Carbohydrate 11.27gg 3.5120628998935gg
 - sugars 0.535gg 0.16672170820258gg
Dietary Fibre 0.25gg 0.077907340281577gg
Sodium 47.41875mgmg 14.777074767908mgmg

Nutritional information does not include the following ingredients: Butter, Onion , Butter

Please Note - Nutritional information is provided as a guide only and may not be accurate.

Here’s how to make cheese sauce in the microwave!

Cheese sauce is great for those nights when you’re in a rush to cook dinner. Your family will think you slaved away for hours to make this gorgeous sauce.  It’s cheesy enough to be the base sauce for Macaroni Cheese, or as a Bechamel sauce for Lasagne.

This is the more traditional ‘French’ version where you make a roux sauce first.  But making cheese sauce in the microwave is so much easier than on the stove top, and you are a lot less likely to burn it.  I use a large glass jug to make mine – do this or find a microwave proof container.

What Can You Use This Microwave Cheese Sauce For?

The following recipes can use this microwave cheese sauce easily!

We have also included an Onion Sauce recipe for you to try.


  1. In a microwave jug melt the butter until frothy, add the flour and salt and whisk.

  2. Microwave for 20 seconds to cook out the flour.

  3. Add a small amount of milk and whisk until you get a creamy even consistency.  Whisk in the remaining milk and cheese.

  4. Microwave for 30 seconds and whisk, repeat until nice and thick.

  5. In a small saucepan, boil a cup of water and the onion together until the onion is cooked through and soft.

  6. Add the butter and the milk and cook for another few minutes.

  7. In a small cup make a paste with the cornflour and a tiny amount of water.  Add to onion mixture and cook on low until the desired consistency.

Recipe Hints and Tips:

  • Microwave Cheese Sauce is not suitable for freezing.
  • If the mixture gets too thick whilst standing, add a bit more milk and whisk.
  • Makes a perfect cheese sauce for lasagna or pasta!
Jody Allen
About Author

Jody Allen

Jody Allen is the founder of Stay at Home Mum. Jody is a five-time published author with Penguin Random House and is the current Suzuki Queensland Amb...Read Moreassador. Read Less

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