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The Recipe · No.812 · Lyonnaise Sauce

Lyonnaise Sauce, and where to source it

Lyonnaise Sauce — 5best2buy.com 5BEST2BUY.COM Lyonnaise Sauce French 5best2buy.com

Reduce the wine and vinegar down to a syrup before the stock goes in. Concentrating that acid first is what keeps the finished sauce sharp and lively instead of flat and flabby.

By Vince Gonzalez · Published July 2026 · Sourcing verified 5 Jul 2026

Prep10 min
Cook30 min
Makes1 cup
CuisineFrench
Cost$$
VegetarianGluten-free
Contains  dairy
Make it vegan: use plant milk, oil, or a vegan cheese for the dairy.
The Ingredients — and where to get them
Cook for 1 cup
Our ratio, your call. The amounts below are a tested starting point — a version, not the one and only. Anything tagged to taste is the knob you turn: start there, then make it yours.
Onions
Sliced thin and cooked to deep gold. Fresh, bought local.
1 cuprecommended
Source it →
White wine
A dry white for the fruit and body of the sauce. Buy this fresh and local.
1/2 cuprecommended
Local / market
White wine vinegar
The sharp acid that keeps the sauce bright.
2 tbsprecommended
Source it →
Demi-glace
A concentrated stock that gives the sauce its velvety body. A rich bone broth reduced down works.
1 cuprecommended
Source it →
Butter
Cold, whisked in at the end for shine. A good butter finishes it.
1 tbsprecommended
Source it →
The Rundown
Greedometer ●●●●● Barely a splurge
A light hand — your arteries say thanks.
EffortEasy
Cook it with
One-potNo-cook
The Method
  1. Brown the onionsCook the onions in butter until sweet and deep golden.
  2. Reduce the acidAdd the wine and vinegar and boil down to about two spoonfuls.
  3. Build the bodyAdd the demi-glace and simmer a few minutes to thicken.
  4. FinishOff the heat, whisk in the cold butter until glossy.
The Toolkit

Saucepan · Whisk · Wooden spoon

Straight Answers
Can you freeze Lyonnaise Sauce? — Yes

Yes — it freezes well. Cool it fully, portion into airtight containers, and it keeps a few months; thaw in the fridge and reheat gently.

Can you make Lyonnaise Sauce ahead of time? — Yes

Yes — it keeps in the fridge for several days; stir or shake it before serving.

Is Lyonnaise Sauce gluten-free? — Yes

Yes — nothing in this recipe as written contains gluten. As always, glance at the labels on any packaged items (broth, sauces, chocolate), since brands vary.

Is Lyonnaise Sauce vegan? — Vegetarian, not vegan

It’s vegetarian but not vegan as written — it has dairy. Make it vegan: use plant milk, oil, or a vegan cheese for the dairy.

Community Notes

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© 2026 5best2buy.com · Recipe No.812

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