I did not know my Primula veris was edible. They bloom so nicely that I have not the heart to eat them.
Some facts from wikipedia.
Primula veris (cowslip, common cowslip; syn. Primula officinalis Hill) is a flowering plant in the genus Primula of the family Primulaceae.
The common name cowslip may derive from the old English for cow dung, probably because the plant was often found growing amongst the manure in cow pastures
Cowslip leaves have been traditionally used in Spanish cooking as a salad green. Uses in English cookery include using the flowers to flavour country wine and vinegars; sugaring to be a sweet or eaten as part of a composed salad while the juice of the cowslip is used to prepare tansy for frying. The close cousin of the cowslip, the primrose P. vulgaris has often been confused with the cowslip and its uses in cuisine are similar with the addition of its flowers being used as a colouring agent in desserts