The poriyal podi can be stored for a week, but since it has coconut, make sure you store in a cool, dry place, or even in the fridge (where it may last to 10 days) Great recipe for Sweet potato roast / Sweet potato poriyal. Then this recipe is perfect for you. A simple, quick side-dish that goes well with sambhar or rasam rice. You have 10 minutes in hand and a couple of sweet potatoes, awaiting your attention? I love sweet potatoes and poriyal masala sounds very delicious and tasty! Reply. Nags. Kids would love it. November 25, 2009 at 1:23 am.