Overview

Blue cheese is a category of cheese inoculated with cultures of the mold Penicillium roqueforti (or less commonly Penicillium glaucum), which produces characteristic blue or green veins throughout the curd. The mold contributes a sharp, salty, and pungent flavor that intensifies with aging. Blue cheese can be eaten alone or used as a spread, crumble, or melt in a wide range of dishes.

Origin and history

The earliest documented blue cheeses originated in caves in southern France, where natural Penicillium molds colonized aging cheese. Roquefort, made from sheep’s milk in the Combalou caves of the Rouergue region, is the oldest known blue cheese and was granted appellation status by the French parliament in 1411 [1]. Gorgonzola from northern Italy and Stilton from England developed as distinct regional blue cheeses by the 18th and 19th centuries [2]. The deliberate inoculation of cheese with Penicillium roqueforti spores became standard practice only in the early 20th century, replacing the earlier reliance on cave environments [2].

Varieties and aliases

  • Roquefort (France, sheep’s milk)
  • Gorgonzola (Italy, cow’s milk; dolce and piccante styles)
  • Stilton (England, cow’s milk; protected designation of origin)
  • Danish Blue / Danablu (Denmark, cow’s milk)
  • Cabrales (Spain, mixed milk)
  • Maytag Blue (United States, cow’s milk)
  • Shanklish (Lebanon, Syria) — strained yogurt or labneh balls aged with mold, sometimes rolled in za’atar or Aleppo pepper; a distinct but functionally analogous product from the Levantine dairy tradition

Culinary uses

Blue cheese is commonly crumbled over salads (classic wedge salad with iceberg lettuce and blue cheese dressing), melted into sauces for steak or pasta, or spread on crackers and bread. It pairs with sweet accompaniments such as honey, figs, pears, and walnuts, which balance its saltiness and pungency. In cooked applications, blue cheese can be incorporated into compound butters, risottos, and stuffed into olives or dates. The cheese is also used in dressings and dips, where it is blended with sour cream, buttermilk, or mayonnaise.

Cross-cuisine context

Blue cheese has no direct analogue in traditional Mexican cuisine, which relies on fresh cheeses (queso fresco, panela) or aged hard cheeses (Cotija, añejo) rather than mold-ripened varieties. In East Asian cuisines, the closest functional analogue is fermented bean curd (furu), a tofu product cultured with mold and aged in brine and rice wine until soft, salty, and pungent. The comparison is structural rather than flavor-based: both are mold-cultured dairy or soy products used as salty, umami-rich condiments or ingredients. Hairy tofu (maodoufu) from Hunan and Anhui, which is deliberately fermented until a white mycelium fur covers each cube, shares the visible mold-culture process but is typically stir-fried rather than aged into a cheese-like product.

Notes for cooks

  • Blue cheese should be stored wrapped in wax paper or cheese paper, not plastic wrap, to allow the mold to breathe and prevent excess moisture from spoiling the texture.
  • For crumbled applications, freeze the cheese for 15 minutes before crumbling to produce cleaner, less sticky pieces.
  • The intensity of blue cheese varies widely: milder styles (dolce Gorgonzola, Danish Blue) work better for dressings and sauces, while sharper styles (Roquefort, Stilton, aged Gorgonzola piccante) are better for eating alone or pairing with sweet fruit.