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Bubistt OHIOISrS for Gravies

A sweet onion syrup made by boiling onions with sugar and vinegar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Onion and vinegar are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 18,226 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Bubistt OHIOISrS for Gravies

Ingredients

Directions

Prepare

  1. Peel and finely chop the onions.

  2. Place them in a non-tinned stewpan with the water and boil for 5 minutes.

Make the syrup

  1. Add the sugar and simmer gently until the mixture becomes nearly black and bubbles of smoke appear.

  2. Gradually strain the mixture into boiling vinegar while stirring with a wooden spoon until well incorporated.

Cool and bottle

  1. Let it cool and then bottle for use.

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

    Shared aroma: acetic acid (sour, vinegar).

  2. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

    Shared aroma: beta-damascenone (apple, rose).

  3. Onion + sugartop 36% of all pairs
    Smell alikelow
    Cooked together15,747 recipes

    Shared aroma: guaiacol (smoky, sweet).

Onion and sugar barely smell alike, yet cooks put them together in 15,747 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
Provide the flavour base that the sugar caramelises around and infuse the syrup with savoury aroma.
Moist sugar
Caramelises as it cooks down, adding dark colour, sweetness and depth of flavour.
Vinegar
Adds acidity that balances the sweetness and helps preserve the finished syrup.

The step that matters

Simmering the sugar until nearly black. Sugar caramelises and darkens quickly near the end, and it can turn bitter and burnt if overcooked. Stopping at the right colour gives rich flavour rather than harsh bitterness.

Swap the onion

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

  1. Mustardfits better
  2. Capsicumfits better
  3. Cucumberfits better
  4. Onionthe original

Fit is the average pairing score against sugar, 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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