Why it works: Onion and parsley are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 25,843 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Celery and Mushrooms À LA Crême
Ingredients
Directions
Prepare the vegetables
Slice 1¼ quarts of celery into inch-thick slices and quarter or eighths 1 cup of mushrooms.
Cook celery and mushrooms separately and drain.
Make the sauce
In a saucepan, heat ¼ cup oil and melted butter, add ¼–½ cup chopped onion, ¾ cup flour, 1 egg or yolk, 1 tsp chopped parsley, and salt.
Simmer the onion mixture, add flour, then add boiling water to make a stiff sauce (about 1 pint); when smooth, remove from heat, add salt, parsley, and beaten egg.
Use the liquid drained from celery and mushrooms with water in the sauce.
Bake and serve
Layer the sauce, cooked celery, and mushrooms in a baking dish, topping with sauce.
Sprinkle with crumbs or cornmeal, bake and brown in the oven.
Optionally, add a little garlic, a small quantity of cream, and a small amount of strained tomato to the sauce.
Nutrition, whole recipe (rough)
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Olive Oil | 1 tbsp (14g) | 119 |
| Egg | 1 large egg (50g) | 78 |
| Onion | 1 medium (110g) | 44 |
| Mushroom | 1/2 cup sliced (35g) | 15 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
| 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 + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mushroom + parsleytop 11% of all pairsSmell alikemoderateCooked together6,132 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Flour
- Thickens the sauce so it holds its shape and coats the vegetables.
- Egg
- Binds the sauce and helps it set as it cooks.
- Mushrooms
- Add savory, earthy flavor and a tender texture to the layers.
- Celery (in the method)
- Provides the main bulk and a crisp-tender texture under the sauce.
- Oil
- Carries flavor and helps form the roux-like base of the sauce.
The step that matters
Cooking the flour into the sauce. Flour must be fully cooked and smoothed into the hot fat and liquid so the sauce thickens evenly without lumps or a raw starchy taste.
Swap the onion
How well each one fits the dish's main ingredients (mushroom, flour, egg, parsley):
- Shallotfits better
- Chivefits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against mushroom, flour, egg, parsley. 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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