Sage Derby Cheese is a mild speciality cheese from Derby, England, made out of cow’s milk. It’s a semi-hard cheese, mottled green and with sage flavour.
The green colour is formed either by adding juice extracted from sage leaves to the curds when the cheese is being made (The Penguin Companion to Food) or by adding spinach juice or green vegetable dye and colourless sage for flavour. (Cheese).
Sage Derby is aged one to three months and has a fat content of 45%. The cheese is made in 4-13.5kg (9-30Ib) cylinders. (Cheese).
I always wondered how that green marberllization occurred! – Kat