Why it works: Lamb and sweet potato share more aroma than cooks usually use. They rank in the top 10% of all ingredient pairs, and 37 recipes mention both. Both carry 2,4-nonadienal, which smells fatty, green. The science ↓
The recipe
Serves 10Ingredients
Contains: tree nuts (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
Heat 3 tbsp of the olive oil in a large heavy casserole over medium heat. Add the onions and ginger and cook for about 10 minutes, stirring, until soft and golden. Transfer to a bowl.
Increase the heat to medium-high and add the remaining 3 tbsp olive oil. Brown the lamb chunks in batches for about 5 minutes per batch, until well browned on all sides.
Return the onion mixture to the pot with the cumin, paprika, ground coriander and cinnamon sticks. Stir for 1 minute until fragrant.
Add the passata and enough water to just cover the lamb. Bring to a simmer, cover, and cook on low for about 1 hour 30 minutes, stirring occasionally, until the lamb is very tender and reaches at least 145°F (63°C) in the thickest part.
Add the sweet potato chunks and pitted dates to the pot. Cover and simmer gently for about 30 minutes more, until the sweet potatoes are tender.
Meanwhile, roughly chop the toasted almonds and set them aside with the chopped coriander.
Remove the cinnamon sticks from the tagine and discard them. Check that the sauce is thick and the lamb is tender, simmering uncovered for a few minutes if it is too loose.
Serve the tagine hot, scattered with the chopped almonds and fresh coriander.
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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Lamb + sweet potatotop 10% of all pairsAroma overlapstrongMentioned together37 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
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Cumin + coriandertop 1% of all pairsAroma overlapstrongMentioned together3,866 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Ginger + cinnamontop 1% of all pairsAroma overlapstrongMentioned together6,380 recipes
Shared aroma: estragole (anise, licorice).
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Ginger + coriandertop 2% of all pairsAroma overlapstrongMentioned together3,504 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Cumin + cinnamontop 2% of all pairsAroma overlapstrongMentioned together1,103 recipes
Shared aroma: 4-methoxybenzaldehyde (sweet, anise).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (olive, ginger, lamb, cumin, coriander, cinnamon, sweet potato):
- Tomatobetter flavor fit
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Onionthe original
Fit is the average pairing score against olive, ginger, lamb, cumin, coriander, cinnamon, sweet potato. 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).
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