At The Pongal in Billerica, the lassis are exceptional. Bad experiences with, for instance, cloying strawberry versions have taught me to stick with mango, generally a can’t-miss option. But the Pongal’s lassi flavors were both original and good. The ginger lassi is remarkably true to the flavor of fresh ginger. Order the delicious rose lassi, and you’ll swear someone had pureed flower petals into your drink. 

THE PONGAL 786 Boston Road, Billerica, 978-667-3443, thepongal.com