Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
German Toast
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the filling
Finely chop the fricassee or hash with parsley, onion, pepper, and salt.
Add the beaten egg and stew in gravy until reduced and thickened.
Let the mixture cool, then pile it on square pieces of toast.
Bake and serve
Top with slices of hard-boiled egg.
Brush with beaten egg and sprinkle with bread-crumbs.
Bake in a 400°F (200°C) oven until golden.
Squeeze lemon juice over before serving.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- The beaten egg binds the filling and thickens it as it stews in gravy.
- Fricassee or hash
- Provides the main cooked meat base that the filling is built around.
- Gravy
- Adds moisture and savoury flavour, thickened by stewing with the egg.
- Fine bread-crumbs
- Sprinkled on top, they help form a crisp, golden browned crust in the oven.
The step that matters
Let the mixture cool before piling it on the toast. Stewing with beaten egg sets it as it thickens; piling it on hot toast before it cools can make the toast soggy and the filling loose and runny.
Swap the onion
How well each one fits the dish's main ingredients (parsley, pepper, egg, bread, lemon):
- Shallotfits better
- Spinachfits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against parsley, pepper, egg, bread, lemon. 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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