Marion Cahill made Irish Plain Porter Cheese from pasteurised cow's milk and Guinness-brewer Porter since 1759. It is blended to create a visually dramatic mosaic pattern which is the most attractive part of the cheese other than its flavour. Irish Porter is a vegetarian cheese as the curds and whey are separated with vegetable rennet.

The flavours of this brown waxed gourmet cheese are full, rich, tangy and chocolaty with a pungent finish. It goes well with salads. This cheese can also be served grilled. Pair Irish Porter with Chardonnay, Pinot Gringo or Claret Sancerre.

Since July 2022, Cahill’s cheese is now available from Singletons & Co.