Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Baked Hash
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Combine the chopped meat and gravy in a bowl.
In a saucepan, cook the barley with 1 cup of cold water until the water is absorbed and the barley is soft.
Add the cooked barley to the meat and gravy mixture.
Stir in the chopped potatoes, onion, salt, pepper, and water or stock.
Bake
Pour the mixture into a casserole or baking dish.
Optionally, sprinkle bread crumbs over the top before baking.
Bake for one hour.
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.
Photo for illustrative purposes only · Contact us to use it
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Barley + potatotop 5% of all pairsSmell alikestrongCooked together165 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Barley + oniontop 10% of all pairsSmell alikemoderateCooked together1,166 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold meat
- Provides the main protein and bulk of the hash.
- Barley
- Adds chewy texture and absorbs liquid, thickening the mixture as it bakes.
- Potatoes
- Add starch and body, becoming tender and helping bind the hash.
- Gravy
- Adds moisture and savory flavor that keeps the meat from drying out.
The step that matters
Cooking the barley until soft. Barley must fully absorb its cooking water and soften before mixing, because raw grains would stay hard during the short baking time and leave the hash gritty.
Swap the onion
How well each one fits the dish's main ingredients (meat, barley, potato, pepper):
- Asparagusfits better
- Leekfits better
- Carrotfits better
- Onionthe original
Fit is the average pairing score against meat, barley, potato, 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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