
Sýra
Sýra is Icelandic soured skyr whey kept as a household acid store: a drink when diluted, and historically the medium for súrmatur. Fresh leftover whey is not the same material.
1504 records with their sources, across 11 categories.

Sýra is Icelandic soured skyr whey kept as a household acid store: a drink when diluted, and historically the medium for súrmatur. Fresh leftover whey is not the same material.

A documentary account of Icelandic hákarl, fermented and dried Greenland shark. It describes cultural context and one production study, not a home preparation method.

Skyr is Iceland’s thick, tart fresh cheese. This home method cultures skim milk with fresh skyr and rennet, then drains the curd under refrigeration.

A sour, red Turkish drink of black carrot, rock salt and bulgur or sourdough, fermented in a traditional two-stage method or a direct one, and drunk with food in southern Turkey.
The original Polish barszcz: young hogweed leaves soured in warm water for a few days, then boiled into soup with egg, butter, cream or millet. Recorded from 1595, with warnings about the sap and lookalikes.

Raw beetroot cut and packed into a jar under a salt-water brine, fermented until sour and deeply coloured; the batch weight is not recorded.

Zakwas buraczany is the fermented red-beet liquid used as the sour base for Polish beet barszcz. The liquid is made from beetroot, garlic, salt and water, and the official sources give no quantities.

A Penn State Extension crock method mixes 5 lb of shredded cabbage with 3 tablespoons of canning or pickling salt, packs it under its own brine and ferments it in a covered container.

A chile sauce of dried pasilla peppers whose liquid is an alcoholic drink, pulque in the old form and beer where pulque is not available. It is served with barbacoa in Mexico City and the central states.

A hot, sour maize drink from Tabasco made from maize that is not lime-cooked. The ground grain sours for half a day, then makers strain it and boil it until thick.

Brazilian doce de abóbora: Freeze for winter; small fresh portion refrigerated up to 48 hours.

English lemon-and-ginger preserved pumpkin, after an 1861 recipe: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Spiced freezer pumpkin butter: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Fine strands of Cucurbita ficifolia cooked in an equal weight of sugar, then portioned for refrigerator or freezer storage. Ordinary orange pumpkin does not give the same fibres.

Pumpkin and dried-apricot jam: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Turkish pumpkin jam without lime: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Greek pumpkin spoon sweet, with Cypriot context: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Portuguese pumpkin jam: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Kalabasa catsup: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Kabocha no nukazuke: Refrigerated commercial fermented bed; use removed portions the same day.

Mathanga achar: Freeze for winter; small fresh portion refrigerated up to 48 hours.

South African pumpkin atchar: Freeze for winter; refrigerated 48-hour limit includes overnight marination.

British pumpkin, apple and mustard pickle: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Dynia marynowana: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Marineeritud kõrvits: Freeze for winter; small fresh portion refrigerated up to 48 hours.

Ball sweet pumpkin pickles: Cupboard: exact published Ball formulation and water-bath process.

Pumpkin and pineapple Autumn Glory compote: Cupboard: exact Bernardin formulation and water-bath process.

Portuguese pumpkin jam cooked with cinnamon and optional walnuts. A sweet spread to refrigerate or freeze, rather than a home-canned preserve.

Rind-on pumpkin simmered with piloncillo, orange and cinnamon until glazed. This Mexican sweet keeps refrigerated for up to one week.

Cooked pumpkin blended with honey, cinnamon, nutmeg and cloves, spread thinly and dried into a rollable sheet.

Pumpkin simmered with 5% vinegar, sugar, cinnamon, cardamom and cloves, then chilled. A sweet-sour pickle for the refrigerator.

Pumpkin chunks and tart apples cooked with ginger, whole spices and cider vinegar. This version is for refrigeration or freezing, not cupboard storage.

A smooth pumpkin spread cooked with apple juice, lemon and warm spices. Keep it refrigerated for up to seven days, or freeze for longer storage.

Plain pumpkin cubes hot-packed in water and pressure-canned for later cooking. The pieces stay intact during canning; mash them only after opening.

Washed pumpkin seeds dried gently for storage, with an optional roasting step before eating. Refrigerate or freeze the cooled seeds.

Steam-blanched pumpkin dried until brittle, kept as pieces or ground into powder, with pumpkin-specific packaging and quality guidance.

Cooked pumpkin mashed, cooled and frozen in portions: a plain base for pies, soups and baking without canning a dense purée.

Japanese pickles made by burying vegetables in nukadoko, a reusable bed of rice bran, salt and water that is turned daily and ripened by lactic and yeast fermentation.

A clear, sharp vinegar made by acetifying alcohol. Its restrained color and aroma suit pickles, sauces and dressings where darker or more aromatic vinegars would change the result.

White-wine vinegar is made when acetic acid bacteria oxidise the alcohol in finished white grape wine, yielding a pale, wine-derived souring condiment for dressings, sauces and cooking.

Cider vinegar is made when acetic-acid bacteria use oxygen to turn the alcohol in dry apple cider into acetic acid. This historical cask method begins with fermented cider and differs from apple-scrap vinegar made with sugar and water.

Salted, barrel-fermented Baltic herring from Sweden, surströmming is packed in shallow tins where fermentation may continue. Its traditional production is a specialist commercial process, not a household formula.

Trout or salmon poached at the end of a simmered broth of onion and root vegetables, a present-day reconstruction of coastal cooking built on excavated fish bones and a boiling pot.

Lamb shoulder simmered with pearl barley, turnip and leafy cabbage in one pot, a present-day reconstruction built from the animals, grains and vegetables of northern European farming.

Young stinging nettle shoots cooked with bacon, onion, garlic and three roots into a thick spring soup, from a Danish Viking museum's recipe, with a meat-broth variation and ember-baked turnips.

A lightly sparkling cider bottled before it had finished fermenting, as Sir Paul Neile described it in 1664, with a measured modern method for safe bottle conditioning.

Rice and black gram are soaked separately, ground, salted and fermented into a thick batter for idli. The batter is portioned into moulds and steamed into soft savoury cakes.

Dry, lightly sparkling cider from Asturias in northern Spain, pressed from cider apples, fermented without added sugar, matured through the winter and poured from a height.

Drained pickled cucumber, capers and unspecified herbs turn finished mayonnaise into a fresh fish and seafood accompaniment; these archived amounts are untested starting points.

Shacha is a savoury, granular Fujian, Teochew and Taiwanese condiment of oil, garlic, shallot and dried seafood, often sold as Chinese barbecue sauce.