| From | All over China; the English word from Guangdong, big and small ones from Shanghai | Bologna and Modena, in Emilia-Romagna | All over Italy |
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| Flour and dough | Wheat flour, water and a little salt – no egg in most. Cantonese wrappers add egg and alkaline water (碱水) for a yellow, springy wrapper. Usually machine-rolled and bought ready-made | Soft wheat flour (tipo 00) and whole eggs, no water: the yellow egg pasta Bologna calls sfoglia, rolled out by hand | Usually the same egg pasta as tortellini |
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| Thickness and bite | Paper-thin; in broth it turns silky, slippery and almost see-through | Thin but firmer – it keeps a little bite | Like tortellini, a little thicker at the sealed edges |
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| Size and shape | Palm-sized square, folded loosely, with soft, frilly edges | A square of about 3–4 cm, folded into a triangle, the corners wrapped round a finger into a ring | Flat pillows, square or round, sealed all round with a crimped edge |
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| Filling | Raw minced pork with ginger, spring onion, soy sauce, rice wine and sesame oil, often shrimp or greens. It cooks inside the wrapper | Pork loin, prosciutto, mortadella, Parmigiano-Reggiano, egg and nutmeg (the Bologna recipe registered in 1974) – cooked or cured before it is wrapped | Ricotta and spinach, meat or cheese – it depends on the region |
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| Cooking | Boiled in plain water for a few minutes, then ladled into a bowl of broth – often just hot water poured over soy sauce, lard, seaweed and dried shrimp | Simmered right in the broth: a clear stock of capon, or beef and chicken | Boiled in salted water and drained |
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| On top | Spring onion; vinegar and chilli oil from the table. Dry versions come in chilli oil (红油抄手) or sesame sauce | Grated Parmigiano. Outside Bologna also served with cream or butter | A sauce: butter and sage, tomato, ragù |
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| When | Any day: small ones for breakfast, big ones for lunch. Suzhou and Shanghai eat them at the winter solstice | Sunday lunch – and above all Christmas | Everyday and festive |
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| Allergens | A wheat, F soy; often B (dried shrimp) and N (sesame oil); C in egg wrappers | A wheat, C egg, G milk (Parmigiano); L celery in the broth | A wheat, C egg; G milk with ricotta or cheese |
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