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Sauce Robert

A savory sauce made with onions, bacon, veal gravy, mustard, vinegar, pepper, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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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 Robert

Ingredients

Directions

Prepare

  1. Cut the onions and bacon into small pieces.

Make the sauce

  1. In a saucepan over medium heat, combine the onions and bacon, stirring to prevent burning until browned.

  2. Add the veal gravy, pepper, and salt; simmer gently until the onions are tender.

  3. Stir in the mustard and vinegar, then serve hot.

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. Mustard + vinegartop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Pepper + mustardtop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

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

    Shared aroma: acetic acid (sour, vinegar).

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

What each ingredient does

Onions
Soften and turn sweet as they cook, forming the body of the sauce.
Bacon fat
Carries flavor and browns the onions, adding savory richness.
Veal gravy
Supplies the liquid base and meaty depth that the sauce simmers in.
Mustard
Adds sharp, pungent flavor that balances the richness of the sauce.
Vinegar
Adds acidity that brightens the sauce and cuts its richness.

The step that matters

Browning the onions and bacon. Stirring over medium heat until browned builds deep, roasted flavor through the Maillard reaction. Stirring keeps the pieces from scorching, which would leave a bitter taste in the sauce.

Swap the onion

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

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

Fit is the average pairing score against veal, pepper, mustard, vinegar. 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.

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