Why it works: Saffron and spinach match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 149 recipes. Both carry nonanal, which smells fat, citrus. The science ↓
Sugar Icing
Ingredients
Directions
Prepare the sugar
Combine the sugar and starch, pound finely, and sift through gauze.
Make the icing
Beat the egg whites until frothy, ensuring to beat in one direction.
Gradually add the powdered sugar to the egg whites while continuing to whip for 30 minutes.
Set aside a small amount of icing for decoration.
Color and finish
To color the icing, mix the coloring with a little colorless spirit, then stir into the icing until the desired tint is achieved.
Spread the icing smoothly over the cake with a knife and dry it in a cool oven.
Use a cone made of stiff paper to squeeze the colored icing for decoration.
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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Saffron + spinachtop 2% of all pairsSmell alikestrongCooked together149 recipes
Shared aroma: nonanal (fat, citrus).
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Saffron + spirittop 17% of all pairsSmell alikemoderateCooked together69 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + spinachtop 22% of all pairsSmell alikelowCooked together2,323 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Sugar + spirittop 25% of all pairsSmell alikemoderateCooked together602 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Extra refined sugar
- Forms the bulk of the icing and gives it sweetness and a smooth, set texture.
- Fine white starch
- Dries the sugar mixture and helps the icing stay light and smooth.
- Egg whites
- Whipped to a foam, they trap air and give the icing its structure and body.
The step that matters
Gradually add the powdered sugar to the egg whites while whipping. Adding sugar slowly lets the whipped whites hold their air and form a stable foam; dumping it in at once can collapse the foam and leave the icing dense.
Swap the saffron
The recipe marks saffron as optional. How well each one fits the dish's main ingredients (sugar, egg, spinach, spirit):
- Cinnamonfits better
- Nutmegfits better
- Saffronthe original
- Gingerfits about as well
Fit is the average pairing score against sugar, egg, spinach, spirit. 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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