The Humboldt Fog cheese portrait was a commissioned painting of a great California cheese. Cypress Grove makes this delicious cheese that is cousin to their Truffle Tremor (also part of this series).
From their website:
"an elegant, soft, surface ripened cheese. The texture is creamy and luscious with a subtle tangy flavor. Each handcrafted wheel features a ribbon of edible vegetable ash along its center and a coating of ash under its exterior to give it a distinctive, cake-like appearance."
purhcase print here