Some advice and a recipe for cooking nettle from Leigh Joseph.
Nettle is one of the most versatile edible plants that can be foraged, but it stings if you touch it with bare skin, so pick it and handle it fresh with gloves and tongs.
Cut it at the base, as both the stem and leaves are edible. Choose plants that are not yet starting to flower – plants between 6 inches and one foot tall.
The good news is that once nettle is dried, cooked, frozen or juiced, the stinging properties disappear.