Why it works: Butter and milk match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 81,222 recipes mention both. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
The recipe
Ingredients
Contains: egg, milk (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare
Combine Butter Buds, non-fat dry milk, and hot water.
In a second bowl, beat egg white until foamy.
Blend in salt, mustard, Sweet'n Low, and vinegar.
Make the mayonnaise
While beating, slowly add oil, then the Butter Buds mixture.
Chill for at least one hour.
This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Butter + milktop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Mustard + vinegartop 4% of all pairsAroma overlaplowMentioned together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 8% of all pairsAroma overlapstrongMentioned together118,511 recipes
Shared aroma: nonanal (fat, citrus).
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Milk + eggtop 9% of all pairsAroma overlapmoderateMentioned together88,465 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + mustardtop 14% of all pairsAroma overlapmoderateMentioned together7,977 recipes
Shared aroma: guaiacol (smoky, sweet).
Mustard and vinegar share little aroma chemistry, yet 14,067 recipes mention both: they likely 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
- Egg white
- Provides the foamy protein structure that emulsifies the oil and holds the mayonnaise together.
- Oil
- Supplies the fat that gives the mayonnaise its rich, creamy texture.
- Non-fat dry milk
- Adds milk solids that thicken the mixture and add body.
- Vinegar
- Adds acidity that sharpens flavor and helps stabilize the emulsion.
The step that matters
Slowly add the oil while beating. Adding oil too quickly before the egg white has formed a stable foam can prevent emulsification, so the mixture separates instead of thickening into mayonnaise.
Flavor stand-ins for the mustard
How well each one fits the dish's main ingredients (butter, milk, egg, sugar substitute, vinegar):
- Capsicumbetter flavor fit
- Potatobetter flavor fit
- Asparagusabout as good a flavor fit
- Mustardthe original
Fit is the average pairing score against butter, milk, egg, sugar substitute, vinegar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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