Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Almond Syrup.
Ingredients
Directions
Prepare the almond milk
Blanch and wash the almonds in clean water.
Mash the almonds in a mortar.
Add lemon juice, gum arabic, and ½ pint of water to the mashed almonds.
Add another ½ pint of water and squeeze the mixture through a cloth into a clean basin.
Mash the remaining almonds again with ½ pint of water and strain.
Make the syrup
Mix the strained almond milk with 4 pounds of sugar.
Gently boil the syrup for 1 minute after the sugar dissolves, then remove from heat and skim off the scum.
Stir the syrup until cold, pass it through a cloth, and add a little orange-flower water before bottling.
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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Lemon + orangetop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Almond + orangetop 6% of all pairsSmell alikemoderateCooked together3,125 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Almond + lemontop 10% of all pairsSmell alikestrongCooked together5,655 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Almond + sugartop 18% of all pairsSmell alikemoderateCooked together15,679 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
- Sweet almonds
- Provide the main almond flavour and body of the syrup.
- Gum arabic
- Adds thickness and body, helping the syrup feel smooth and stay emulsified.
- Sugar
- Sweetens the syrup and, when boiled, thickens it into a syrup.
- Lemon juice
- Adds acidity that brightens the flavour and balances the sweetness.
The step that matters
Gently boil the syrup for 1 minute after the sugar dissolves. Boiling too hard or too long can darken the syrup and drive off flavour, while skimming removes scum that would cloud it. A brief gentle boil keeps the syrup clear, fresh-tasting and stable.
Swap the almond
How well each one fits the dish's main ingredients (lemon, sugar, orange):
- Almondthe original
- Pistachiofits about as well
- Chickpeafits less well
- Chestnutfits less well
Fit is the average pairing score against lemon, sugar, orange. 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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