While visiting the city of Berkeley, California today I just had to stop by my favorite market, Berkeley Bowl. It's an amazing place with one of the biggest well-stocked produce departments in the country. Today I bought lots of summer foods, but what really caught my eye this trip was a colorful variety of potato called Oca. It's native to the Andes in South America but fairly common in New Zealand where it is simply known as a yam. The potato is really not much different then a regular waxy potato but the colors are unreal. To cook them I simply roasted with herbs in olive oil and served them along side a piece of salmon.