Why it works: Sugar and bread are a kitchen classic. They rank in the top 32% of all ingredient pairs, and cooks put them together in 8,638 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Common Vinegar
Ingredients
Directions
Prepare the liquid
Boil sugar and water, skimming off any scum.
When warm, spread yeast thickly on both sides of the toasted bread and add it to the mixture.
Let it ferment for 24 hours.
Cask and ferment
Fill a cask with the liquid and place it in a sunny spot.
Cover the bung-hole with a saucer or tile to keep out dust.
Make it in March; it will be ready by July or August.
Bottle
Bottle and cork the vinegar; if not sour enough, let it sit longer.
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.
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Sugar + breadtop 32% of all pairsSmell alikelowCooked together8,638 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lisbon sugar
- Provides the sugar that yeast ferments into alcohol, which then becomes acetic acid.
- Yeast
- Starts the fermentation that converts the sugary liquid into alcohol.
- Soft water
- Forms the liquid base in which the sugar dissolves and ferments.
- Bread
- Carries the yeast into the mixture, spread on the toasted slice.
“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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