Why it works: Vinegar and peppermint work together. They rank in the top 10% of all ingredient pairs, and cooks put them together in 769 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Peppermint Candy
Ingredients
Directions
The book gives no oven temperature. The 300°F in the steps was added when the recipe was transcribed, as a starting point.
Make the syrup
In a saucepan, combine sugar and water, and stir until the sugar dissolves.
Add butter and vinegar, then bring to a boil without stirring.
Cook and flavour
Cook until the mixture reaches the hard crack stage (300°F or 150°C).
Remove from heat and add peppermint oil or essence.
Set and break
Pour onto a greased surface and let cool before breaking into pieces.
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.
-
Vinegar + pepperminttop 10% of all pairsSmell alikelowCooked together769 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Butter + vinegartop 23% of all pairsSmell alikemoderateCooked together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
-
Butter + pepperminttop 25% of all pairsSmell alikemoderateCooked together958 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sugar
- Forms the candy's glassy, hard structure as the syrup cooks and cools.
- Water
- Dissolves the sugar so it can cook evenly without crystallising too early.
- Vinegar
- Acidity helps prevent sugar crystals from forming, keeping the candy smooth.
- Butter
- Adds a little fat that softens the candy's texture and gives a richer finish.
The step that matters
Cook to the hard crack stage without stirring. Stirring after the sugar boils can trigger crystallisation, making the candy grainy. Cooking to 300°F (150°C) drives off enough water for the candy to set hard and brittle rather than sticky.
Swap the peppermint
How well each one fits the dish's main ingredients (sugar, butter, vinegar):
- Cinnamonfits better
- Tarragonfits better
- Peppermintthe original
- Allspicefits about as well
Fit is the average pairing score against sugar, butter, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes
Spice Cake344 recipes