They taste really good right from the pod, a little bit like a fresh sweet pea, but we decided to follow the recommendation of the people in the grocery store and to: Fry them in oil with turmeric and chili. (This, by the way, was how they recommended cooking a lot of the mysterious veggies we picked up).
It's was a lot of work to shuck the things:
But made for a very satisfying pile of pea brains (BRAINS!):
We found that the frying method tended to dry them out a bit, so we needed to add some water and let them simmer for a short while. And we ate the pea brains (BRAINS!!!) on non-authentic pasta -- delicious!