Apparently this is THE place to go for custard, and I agree! Jarlings has the largest flavored custard menu including fan favorites like vanilla, chocolate, strawberry and I believe, orange. They also offer a weekly specialty flavor.
I'm still not the biggest frozen custard fan (hence the three stars), but Jarling's, nonetheless, is still satisfying. They offer sundaes, scoops, concretes (custard with mixed in candy or flavors, i.e., they make a "grasshopper" concrete).
Jarling's also has a classic, 1950s ice cream drive-in spot feel to it. There's limited seating inside, picnic tables outside, a drive thru window, ample parking, and high school kids in tye-dyed t-shirts taking your order.
I also suggest getting a pint or quart to go. It's much cheaper than eating an order there.