Green Onion-Parmesan Mornay Sauce

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READY IN: 35mins
Recipe by Lainey39

This green onion-Parmesan cheese version of the classic Mornay sauce is a great sauce to use with chicken or vegetables. It's perfect over chicken cordon bleu!

Ingredients Nutrition


  1. Melt butter in a heavy saucepan over medium heat.
  2. Stir in green onion and parsley; cook until the green onion has softened, about 3 minutes.
  3. Stir in flour and cook for 3 minutes more, stirring constantly.
  4. Pour in the cream, increase heat to medium-high and bring to a simmer. Once the cream comes to a simmer, reduce heat to medium-low and whisk in the shredded Swiss and Parmesan cheeses.
  5. Slowly simmer, uncovered, until the sauce has thickened, about 3 minutes. Season to taste with salt and pepper before serving.

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