Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Hollandaise Sauce I
Ingredients
Directions
Prepare the butter
Put butter in a bowl, cover with cold water, and wash, using a spoon.
Divide butter into three pieces.
Make the sauce
Put one piece in a saucepan with yolks of eggs and lemon juice.
Place saucepan in a larger one containing boiling water.
Stir constantly with a wire whisk until butter is melted.
Add second piece of butter, and as it thickens, add third piece.
Add water, cook one minute.
Season with salt and cayenne.
Nutrition, whole recipe (rough)
Counts 5 of 6 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Cayenne | 1 tsp (1.8g) | 6 |
| Salt | 1 tsp (6g) | 0 |
| Water | not in our table | 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.
-
Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 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
- Butter
- Provides fat that emulsifies with the yolks, giving the sauce its rich, smooth body.
- Egg yolks
- Emulsifier and thickener; they set gently with heat to bind the butter into a smooth sauce.
- Lemon juice
- Adds acidity that brightens the rich butter and helps keep the emulsion stable.
The step that matters
Adding the butter gradually while whisking over the water bath. Egg yolks thicken with gentle heat but can scramble if overheated. Adding butter slowly while whisking constantly lets the fat emulsify into the yolks, so the sauce thickens smoothly instead of curdling.
Swap the lemon
How well each one fits the dish's main ingredients (butter, egg):
- Lemonthe original
- Vanillafits about as well
- Coconutfits about as well
- Raspberryfits less well
Fit is the average pairing score against butter, egg. 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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