Why it works: Onion and potato 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 ↓
Roasting Meat
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.
Roast the pork
Preheat the oven to 350°F (175°C).
Roast the pork for three hours, making sure the crackling is crisp and not burnt.
Serve
Serve the roast pork with sage and onion sauce, apple sauce, and mustard.
Accompany with plenty of nicely boiled potatoes.
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.
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.
-
Onion + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + potatotop 5% of all pairsSmell alikemoderateCooked together2,668 recipes
Shared aroma: sotolon (curry, maple).
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + potatotop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Sage + mustardtop 9% of all pairsSmell alikestrongCooked together372 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pork
- Forms the main body of the dish; roasting browns and firms its outer surface.
- Sage and onion sauce
- Adds savoury, aromatic flavour that complements the roasted meat.
- Apple sauce
- Adds sweetness and acidity that balance the richness of the pork.
- Boiled potatoes
- Provides a starchy side that soaks up the sauces and fills the plate.
The step that matters
Getting the crackling crisp, not burnt. Crackling forms when the skin dries and its fat renders, so it turns crisp. If the surface over-browns, the sugars and proteins scorch and turn bitter, so check it during the three hours.
Swap the apple
How well each one fits the dish's main ingredients (pork, sage, onion, sauce, mustard, potato):
- Avocadofits better
- Limefits better
- Lemonfits better
- Applethe original
Fit is the average pairing score against pork, sage, onion, sauce, mustard, potato. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Potato Croquettes255 recipes
Pork Cake107 recipes
Roast Pork82 recipes
Potato Rolls78 recipes