Name: Cream Soda, Using Cow's Cream, for Fountains
Ingredients: 6 lbs loaf sugar; 1 qt sweet rich cream; 1½ cups water; 1 oz extract of vanilla; ½ oz extract of nutmeg; ¼ lb tartaric acid (if used without a fountain)

Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Cream Soda, Using Cow's Cream, for Fountains

Ingredients

Directions

Gradually warm the cream and water together, being careful not to burn them.
Add the loaf sugar, vanilla extract, and nutmeg extract.
Bring the mixture to a boil.
Do not cook for too long to avoid crystallization.
If not using a fountain, add the tartaric acid.
Use four to five spoons of this syrup instead of three as in other syrups.

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.

Sugar + vanillatop 8% of all pairs

Smell alikelow

Cooked together35,032 recipes

Shared aroma: beta-damascenone (apple, rose).
Sugar + creamtop 9% of all pairs

Smell alikemoderate

Cooked together43,450 recipes

Shared aroma: 2,3-butanedione (butter, sweet).
Vanilla + nutmegtop 10% of all pairs

Smell alikestrong

Cooked together2,781 recipes

Shared aroma: eucalyptol (eucalyptus, herbal).
Cream + nutmegtop 13% of all pairs

Smell alikemoderate

Cooked together7,920 recipes

Shared aroma: acetic acid (sour, vinegar).
Cream + vanillatop 15% of all pairs

Smell alikelow

Cooked together12,301 recipes

Shared aroma: 2-nonanone (fruity, floral).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Loaf sugar: Provides sweetness and body to the syrup.
Sweet rich cream: Adds richness and fat, giving the syrup a smooth, full texture.
Extract of vanilla: Contributes the main aroma of the finished syrup.
Tartaric acid: Adds acidity for a tart bite, used only when no fountain is available.

The step that matters

Do not cook for too long. Overcooking a sugar syrup can cause the sugar to recrystallize, leaving a grainy texture instead of a smooth, pourable syrup.

Swap the nutmeg

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

Cinnamonfits better
Nutmegthe original
Peppermintfits less well
Clovefits less well

Fit is the average pairing score against sugar, cream, vanilla. 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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Cream Soda, Using Cow's Cream, for Fountains