Why it works: Spinach and nutmeg work together. They rank in the top 5% of all ingredient pairs, and 603 recipes mention both. Both carry coumarin, which smells sweet, hay. The science ↓
The recipe
Ingredients
Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
The book says “a moderate oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.
Prepare the custard
Beat the egg yolks and whites separately.
Combine the cream, spinach juice, tansy juice, Naples biscuit, sugar, white wine, and nutmeg.
Heat the mixture in a saucepan just until it thickens.
Bake and serve
Pour the mixture into a dish lined with pastry.
Bake in a moderate oven (350°F / 175°C) until set.
Serve warm.
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 aroma chemistry they share, and how many recipes mention both.
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Spinach + nutmegtop 5% of all pairsAroma overlapmoderateMentioned together603 recipes
Shared aroma: coumarin (sweet, hay).
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Cream + sugartop 5% of all pairsAroma overlapmoderateMentioned together43,437 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Cream + nutmegtop 6% of all pairsAroma overlapmoderateMentioned together7,917 recipes
Shared aroma: acetic acid (sour, vinegar).
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Spinach + biscuittop 6% of all pairsAroma overlapstrongMentioned together58 recipes
Shared aroma: nonanal (fat, citrus).
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Biscuit + nutmegtop 7% of all pairsAroma overlapstrongMentioned together368 recipes
Shared aroma: maltol (caramel, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg proteins set on heating, giving the custard its body and firmness.
- Cream
- Adds fat and richness, producing a smooth, tender texture when set.
- Naples biscuit
- Absorbs liquid and adds body, helping the custard hold its shape.
- Spinach juice
- Contributes moisture and color along with the herbal flavor of the custard.
The step that matters
Heat the mixture just until it thickens. Egg proteins begin to set around 160°F to 180°F and curdle if overheated, so the mixture should be heated gently and removed as soon as it thickens.
Flavor stand-ins for the spinach
How well each one fits the dish's main ingredients (egg, cream, biscuit, sugar, white wine, nutmeg):
- Sweet potatoabout as good a flavor fit
- Potatoabout as good a flavor fit
- Asparagusabout as good a flavor fit
- Spinachthe original
Fit is the average pairing score against egg, cream, biscuit, sugar, white wine, nutmeg. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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