Why it works: Sweet potato and spinach match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and 126 recipes mention both. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
The recipe
Serves 4Ingredients
Contains: milk, wheat (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 the oven to 325°F (160°C). Season the lamb shanks with salt and black pepper. Heat 2 tbsp olive oil in a large casserole over medium-high heat and brown the shanks on all sides, about 10 minutes. Set aside.
Peel and chop the onion, garlic, carrot, celery and leek. Lower the heat to medium, add 1 tbsp olive oil and the vegetables to the pot, and cook for 8 minutes until softened.
Stir in the tomato purée and flour and cook for 1 minute. Pour in the red wine, scrape up the browned bits, and simmer for 3 minutes.
Add the lamb stock, thyme, rosemary and bay leaf. Return the shanks to the pot, bring to a simmer, cover tightly and braise in the oven for 2 hours, until the meat is very tender.
Check that the thickest part of the lamb reads at least 145°F (63°C), then rest the shanks for 3 minutes. Lift out the shanks and keep warm. Strain the sauce, return it to the pot and simmer until reduced by about half, about 15 minutes. Season to taste.
Peel the sweet potatoes, cut them into chunks and cover with a pan of boiling water. Simmer for 15 minutes until soft, then drain well.
Mash the sweet potatoes with the double cream and the 1 tbsp butter until smooth. Season with salt and black pepper and keep warm.
Melt the 1-2 tbsp butter in a large frying pan over medium-high heat. Add the baby spinach in batches and toss for 1 to 2 minutes until just wilted. Season with salt and pepper.
Spoon the sweet potato purée onto plates, top with the spinach, place a lamb shank alongside and spoon the red wine sauce over the lamb to serve.
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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Sweet potato + spinachtop 4% of all pairsAroma overlapstrongMentioned together126 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Carrot + celerytop 1% of all pairsAroma overlapstrongMentioned together10,172 recipes
Shared aroma: myristicin (spice, warm).
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Onion + garlictop 1% of all pairsAroma overlapstrongMentioned together29,030 recipes
Shared aroma: furaneol (caramel, strawberry).
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Garlic + spinachtop 3% of all pairsAroma overlapmoderateMentioned together2,433 recipes
Shared aroma: 1-hexanol (resin, flower).
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Olive + garlictop 3% of all pairsAroma overlapmoderateMentioned together23,449 recipes
Shared aroma: linalool (floral, citrus).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the leek
How well each one fits the dish's main ingredients (lamb, pepper, olive, onion, garlic, carrot, celery):
- Tomatobetter flavor fit
- Potatobetter flavor fit
- Capsicumbetter flavor fit
- Leekthe original
Fit is the average pairing score against lamb, pepper, olive, onion, garlic, carrot, celery. 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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