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How to Make Low-Carb White Sauce

White sauce can be one of the most useful creations in a home cook’s repertoire.  A basic white sauce, typically béchamel, is an ingredient in many recipes.  It can elevate simple dishes of poultry, fish, vegetables, and eggs.  It can also be enhanced with flavors including white wine, Dijon mustard, curry, and herbs like tarragon.

A classic white sauce is made with a roux, which is flour blended into melted butter.  That’s what gives the sauce its thickness.  And it’s why the sauce is carb-heavy.  I have developed a recipe that reduces the simple carbs in a white sauce by sharply lowering the amount of flour in the roux.  To replace some of the thickness, I have swapped the whole milk for heavy cream and added mild shredded cheese.  To add more flavor, I have included chicken stock.  I also use an onion piqué, which is an onion cut in half, with a bay leaf tacked to it with two whole cloves; it infuses the sauce with flavor while preserving its smooth texture.

The result is a rich, creamy sauce with a mild savory flavor.  I often enjoy it on baked chicken breasts, spaghetti squash, and omelets, for example.  I also frequently use it to replace the béchamel sauce or cream of mushroom soup in recipes.

White Sauce

Ingredients

  • c. heavy cream
  • ½ stick butter
  • 1 tsp all-purpose flour
  • 2 tbsp chicken stock
  • ½ white onion, trimmed and peeled
  • 1 bay leaf, or more as desired
  • 2 whole cloves, or more as desired
  • c. shredded mild, nutty cheese e.g. Parmesan or Gruyere
  • ¼ tsp salt
  • pinch white pepper
  • dash nutmeg

Instructions

  1. Warm cream over med.-low heat in sm. heavy-bottomed saucepan w/ pouring lip; do not boil. Melt butter over low heat in med. heavy-bottomed saucepan.

  2. Meanwhile, make onion piqué: Use cloves to tack bay leaf to cut side of onion half.

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  3. Once butter is melted, stir in flour until fully blended. Do not brown. (This is your roux.)

  4. Stir warm cream into roux. Stir in chicken stock.

  5. Add onion piqué cut side down. Increase heat to med. Bring to low boil, stirring frequently.

  6. Reduce heat to low. Remove onion piqué. Gradually whisk in cheese until melted. Whisk in nutmeg, salt, and pepper. Continue cooking 4-5 min. until sauce thickens, stirring frequently. Use as desired.

Looking for other low-carb recipes?  You might like:

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