Can you pickle black walnuts?
Make a light syrup from the vinegar, brown sugar, cloves, cinnamon and grated fresh ginger. Add the (now jet-black) walnuts when the syrup reaches boiling point and simmer for 15 minutes. Spoon the walnuts into jars, cover with the syrup and seal. Pickled walnuts go well with cheese, nut roast or mashed potatoes.
When should you eat pickled walnuts?
Traditionally pickled walnuts are eaten with sharp cheddar, or with roasts and game; however, I find them equally delicious on toast with vegan cheese, in pies, pasties and even in my burgers. Pickled green walnuts are sour/tangy, like solid Worcestershire sauce.
Can you ferment walnuts?
Submerge the walnuts in the brine and let them ferment for 8 days at room temperature. Remove the walnuts and put them on a baking sheet and leave them outside in the sun for a day, until they turn uniformly black. You can do this step without gloves if you want. Pack the walnuts into quart jars.