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Convent Eggs

Hard‑boiled eggs served in a buttery onion sauce.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Convent Eggs

Ingredients

Directions

Make the sauce

  1. Slice the onion thinly and cook in butter for 10 minutes without browning.

  2. Add flour, then gradually stir in the milk.

  3. Stir until boiling and boil for 3 minutes.

Assemble and serve

  1. Cut the eggs in halves or slices and heat them in the sauce.

  2. Lift the eggs onto a hot dish and pour the sauce over.

  3. Garnish with fried or toasted bread.

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.

  1. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Hard-boiled eggs
Provide the main body of the dish, with their firm whites and yolks holding their shape in the sauce.
Butter
Cooks the onion gently and carries flavour into the sauce as a fat.
Milk
Forms the liquid base of the sauce, which thickens as it heats.
Flour
Thickens the milk into a smooth sauce as it cooks with the butter.

The step that matters

Stir the flour and milk smoothly, then boil. Adding the milk gradually while stirring keeps the flour from forming lumps. Boiling then cooks the starch so the sauce thickens fully and loses its raw flour taste.

Swap the onion

How well each one fits the dish's main ingredients (egg, butter, milk, flour, pepper):

  1. Capsicumfits better
  2. Potatofits better
  3. Asparagusfits better
  4. Onionthe original

Fit is the average pairing score against egg, butter, milk, flour, 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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