Name: Mashed Potatoes
Ingredients: a piece of butter the size of an egg; a cup of boiling hot milk; a good pinch of salt; a small piece of butter on the top in the centre; half dime; butter the size of an egg; salt

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 ↓

Mashed Potatoes

Ingredients

Directions

Take the quantity needed, pare off the skins and lay them in cold water half an hour; then put them into a saucepan with a little salt; cover with water and boil them until done. Drain off the water and mash them fine with a potato masher. Have ready a piece of butter the size of an egg, melted in half a cup of boiling hot milk and a good pinch of salt; mix it well with the mashed potatoes until they are a smooth paste, taking care that they are not too wet. Put them into a vegetable dish, heaping them up and smooth over the top, put a small piece of butter on the top in the centre, and have dots of pepper here and there on the surface as large as a half dime.
Some prefer using a heavy fork or wire beater, instead of a potato masher, beating the potatoes quite light and heaping them up in the dish without smoothing over the top.

Nutrition, whole recipe (rough)

329Calories

14 gProtein

25 gFat

13 gCarbs

What these numbers assume: 4 portions

Ingredient	Portion assumed	kcal
Milk	1 cup (244ml) whole	149
Butter	1 tbsp (14g)	102
Egg	1 large egg (50g)	78
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.

By F. L. Gillette and Hugo Ziemann. Recipe from a historical cookbook (Project Gutenberg).

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 + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter + eggtop 17% of all pairs

Smell alikemoderate

Cooked together118,967 recipes

Shared aroma: decanal (soap, orange peel).
Egg + milktop 18% of all pairs

Smell alikemoderate

Cooked together88,785 recipes

Shared aroma: 2-nonenal (fatty, green).