Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Eggs and Omelets
Ingredients
Directions
Make the onion and egg dish
In a stew-pan, chop three small onions about the size of the top of the thumb very finely.
Fry the onions and add a dessert-spoonful of vinegar.
When the cucumber is tender and a little time has been allowed for the vinegar to evaporate, add six hard-boiled eggs cut into slices.
Add pepper and salt.
Make the eggs very hot and serve.
Make the cheese eggs
Take a quarter of a pound of dry, white grated cheese and melt it gently in a stew-pan over the fire with a little butter about the size of a thumb.
Mix in a brimming teaspoonful of chopped parsley, two or three tiny spring onions chopped very finely, and about a quarter of a small grated nutmeg.
When the cheese is melted, add six beaten-up eggs and stir the mixture until set.
Serve with fried or toasted bread around the edge of the dish.
Make the yolk shapes
Take six hard-boiled yolks, powder them, and flavor with a little pepper and salt.
Mix in three raw yolks and stir well.
Roll the mixture into shapes like small sausages, pointed at each end.
Flour the shapes on the outside and throw them into boiling water.
Optionally flavor the boiled shapes with grated nutmeg, chopped parsley, and a few savory herbs.
Nutrition, whole recipe (rough)
What these numbers assume: 6 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Cheese | 1 oz (28g) cheddar | 113 |
| Egg | 1 large egg (50g) | 78 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Vinegar | 1 tbsp (15ml) distilled | 3 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cheese + vinegartop 12% of all pairsSmell alikemoderateCooked together922 recipes
Shared aroma: 3-methylbutanol (malty, whiskey).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Cheese + oniontop 16% of all pairsSmell alikemoderateCooked together4,849 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
- Set and bind the mixture into a firm, sliceable or spoonable body.
- Grated cheese
- Melts into the dish, adding richness, salty flavor and a creamy texture.
- Onions
- Softened by frying, they add sweetness and savory depth.
- Raw yolks
- Add richness and fat, helping the shapes hold together smoothly.
- Vinegar
- Adds a sharp acidity that brightens the onions.
The step that matters
Make the cheese eggs. Once the beaten eggs go into the melted cheese, they set quickly; stirring steadily keeps the mixture soft and prevents it from turning rubbery or curdled.
Swap the onion
How well each one fits the dish's main ingredients (cheese, egg, vinegar, pepper):
- Capsicumfits better
- Mustardfits better
- Cucumberfits better
- Onionthe original
Fit is the average pairing score against cheese, egg, vinegar, pepper. 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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