Skip to main content
Sauce

Sauce Kobert

A creamy onion sauce flavored with vinegar, Esjagnole sauce, and mustard, served warm with pork.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
Jump to recipe ↓

Why it works: Onion and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Sauce Kobert

Ingredients

Directions

Cook the onions

  1. Brown the diced onions in butter over medium heat.

  2. Moisten the onions with vinegar, then gradually add Esjagnole sauce until the mixture is creamy.

Finish and serve

  1. If too thick, add a little more vinegar or lemon juice.

  2. Remove from heat and stir in mustard.

  3. Serve the sauce warm with pork entrees.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Onion + mustardtop 6% of all pairs
    Smell alikestrong
    Cooked together9,259 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Vinegar + mustardtop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Sauce + mustardtop 13% of all pairs
    Smell alikemoderate
    Cooked together2,120 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Onion + vinegartop 14% of all pairs
    Smell alikemoderate
    Cooked together18,226 recipes

    Shared aroma: acetic acid (sour, vinegar).

  5. Butter + saucetop 15% of all pairs
    Smell alikelow
    Cooked together15,338 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Butter and sauce barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Onions
Browning builds sweet, savory depth as the sugars caramelize in the butter.
Butter
Adds fat and rich flavor and helps the onions brown.
Vinegar
Adds acidity that brightens the sauce and balances the richness.
Esjagnole sauce
Provides body and a creamy texture as it is added gradually.
Mustard
Adds sharp, pungent flavor stirred in off the heat.

The step that matters

Brown the onions over medium heat. Slow, even browning caramelizes the onion sugars and builds deep flavor. Heat that is too high scorches the outside before the inside softens and colors, leaving bitter notes.

Swap the onion

How well each one fits the dish's main ingredients (butter, vinegar, sauce, mustard):

  1. Horseradishfits better
  2. Shallotfits better
  3. Radishfits better
  4. Onionthe original

Fit is the average pairing score against butter, vinegar, sauce, mustard. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

You might also like

Mixed MustardMixed Mustard9 recipesWine Sauce (for stewed fruit)Wine Sauce (for stewed fruit)186 recipesCaper SauceCaper Sauce180 recipesBrown SauceBrown Sauce141 recipes