The hoya, or sea pineapple, is one of the ocean's hidden delicacies. Protected by a hard shell, the marine animal's meat offers a wide range of flavors, including rich umami. In Miyagi Prefecture, hoya aquaculture has come a long way since the devastating tsunami that followed the Great East Japan Earthquake of 2011. Feast your eyes on an array of dishes featuring the edible ascidian, and discover how a restaurant in Tokyo is breathing new life into French cuisine. (Reporter: Janni Olsson)

Japanese mustard, or karashi, is an essential condiment for tonkatsu pork cutlets, the stewed dish known as oden, and many other everyday meals. We visit a mountain village in Kyoto Prefecture and meet a family who farms their own mustard greens to make karashi. This time-consuming process involves harvesting and filtering tiny seeds then grinding them into powder with an old-fashioned millstone! We also try a variety of delicious karashi dishes on this fun and spicy episode. (Reporter: Kailene Falls)