Cherry concretes from Andy's, Culver's, and Freddy's.Meredith SchneiderI tried custard from Culver's, Andy's, and Freddy's to see which chain has the best.Culver's custard was buttery, and Freddy's frozen treat had a thinner consistency.Andy's frozen custard had the best flavor and texture of the bunch.Although several sources have traced the origins of frozen custard to Coney Island, New York, it is now widely considered to be a staple Midwest …