According to founder and owner Amy Covin, Amy’s Wicked Slush brings the best street food from the north end of Boston to the south end of Healdsburg, California. Visitors can indulge themselves with an inviting clam chowder, a hearty meatball sub, or treat themselves to a sweet slush. “It’s a snowball of freshly fallen snow”, Covin shares, “It’s not shaved ice. We don’t start with a block of ice and shave it down. It starts as a liquid and we freeze it up until it’s exactly the consistency that we want. It’s soft, but it’s firm”.Covin offers the East Coast treat in a wide array of flavors from mango and peach to cotton candy and root beer. “I kind of became a food scientist along the way, and now, I can...