I bought a bag of frozen back-eyed peas at Christmas, and I never got around to using them, so I tossed half the bag into a chilli I was making last night. I cooked it for two hours and they never ever got soft, so I gave up and put the chilli in the fridge overnight, and reheating some now, the black-eyed peas are STILL firm. Were they ever supposed to get soft in the first place? Did I cook them wrong? I've never used or eaten them before so I don't really know what they were supposed to be like. I also tossed some frozen edamame into the chilli and that stayed firm as well, but I expected it.