Cardoncello Mushrooms in Oil, an Artisan Calabrian Preserve
The cardoncello (king oyster mushroom) isn't a woodland mushroom. It grows in full light, on open, dry ground, in the grasslands and uncultivated land of southern Italy where the sun lingers and the soil is dry. It's found on the roots of giant fennel and wild thistle, in the steppe-like landscapes of inland Calabria that look empty to outsiders, but that those who know how to look recognise as rich in things hard to find elsewhere.
The cardoncello is one of those things. It isn't gathered in damp autumn beech woods like the porcino: it's sought in late summer and autumn, when temperatures drop and the first rains fall on ground that has gone all summer without water, which responds with a precise, seasonal flush of mushrooms.
This different origin shows in the mushroom. The cardoncello has a texture woodland mushrooms lack: its flesh is dense, firm and meaty in a way that doesn't easily disappear with cooking, and that holds its presence in oil even after preserving. It isn't the kind of mushroom that melts away into the dressing. It stays. You find it in the jar as it was found in the field: firm, with a recognisable shape and a satisfying bite. This meatiness is what makes it better suited to preserving in oil than many other mushrooms: it stands up to processing, stands up to time, and offers in every mouthful a fullness few ingredients can give.
The flavour of cardoncello is delicate compared with porcini – less woodsy, less intensely earthy. It doesn't impose itself: it's round, slightly sweet, with a subtle umami note that emerges especially when cooked and softens further over time in oil. This delicacy isn't weakness: it's a character that pairs well with bold seasonings without disappearing, holding its own without covering what's around it, making it a versatile ingredient that adapts to different dishes while keeping its identity.
The dressing surrounding the mushrooms creates an overall profile richer than cardoncello alone. Wine vinegar comes first: its role isn't only to add acidity but to stabilise, creating the conditions for preserving and, over time, balancing with the oil and the flavour of the mushrooms. Extra virgin olive oil wraps, preserves and brings its fruity richness, joining the flesh of the cardoncello and keeping it tender. Garlic brings depth, that savoury note spread evenly through the dressing as a base for everything else. Black peppercorns bring a dry, lingering warmth, a different kind of heat from chilli: drier, more aromatic, with an almost resinous note that opens slowly on the palate. Chilli flakes bring more direct heat, felt immediately. Mint brings freshness, the same you find in other vegetable preserves of this cuisine: a clean, green note that lightens everything and, in a mushroom whose sweet flesh could feel heavy in a rich dressing, plays a precise and necessary role.
The opened jar smells of all of this together: garlic and mint first, then the oil, then the mushroom underneath with its sweet, umami note. It's a scent of traditional cooking, of autumn, of those Calabrian larders where every jar is a season put away. Over time the aromas blend further: the oil becomes more evenly flavoured, the mushroom absorbs the dressing and the dressing enters the mushroom. After a few weeks, what you find in the jar is more harmonious than when it was first made.
On an antipasto board, cardoncelli in oil bring the dark colour of the mushroom and the aroma of the dressing, visibly changing the character of the board. With aged cheeses, the contrast between the meaty sweetness of the mushroom and the savouriness of the cheese makes both better: the cheese seems lighter, the mushroom richer. With traditional bread, where the firm cardoncello holds up to each bite, they're a complete starter on their own. On warm bruschetta the dressing warms slightly and the aromas open: mint, garlic and black pepper all come through more vividly than straight from the fridge.
With meat, especially grilled meat, whose bold flavour calls for a side with character, cardoncelli bring their sweetness and meatiness without competing, completing the dish. With roast pork or a steak, the mushrooms in oil are the side touch that makes the dish more interesting without stealing attention. In a rustic sandwich with a semi-hard cheese, cardoncello adds texture and flavour so every bite is different.
A mushroom from a specific landscape, carrying everything that landscape gave it, and which, preserved in oil, lasts well beyond its season.
How to enjoy them
On antipasto boards with aged cheeses, cured meats and traditional bread. On warm bruschetta as a flavourful, aromatic starter. In rustic sandwiches with semi-hard cheeses. Alongside grilled or roast meat. With aged cheeses such as pecorino or caciocavallo. In cold pasta or risotto, added off the heat at the end of cooking. As a topping for crostini and aperitifs. Use the preserving oil to dress steamed vegetables or pasta.
Storage
Store in a cool, dry place before opening. Once opened, refrigerate and keep the mushrooms covered with their oil. Consume within 4–5 days of opening.
Size
200g jar.
Ingredients
Fresh cardoncello mushrooms, extra virgin olive oil, salt, wine vinegar, mint, garlic, hot chilli flakes, black peppercorns.
