While a friend was visiting Chicago from St. Louis this weekend, we decided to finally go to Margie's Candies in Bucktown for "lunch" since we had both heard of it and never been. It's a super old fashioned ice cream and candy shop, and was totally delicious.
Sundaes are around $5-$7 and are ENORMOUS. We both got our own, and thank god had not eaten lunch, because neither of us finished them. "Two scoops" is really more like three, and you get an entire side of fudge with your sundae in most cases.
I got the Grandpa's Turtle Sundae, which has two scoops of ice cream (flavors of your choice- I did Chocolate and Praline), caramel, a side of fudge, whipped cream, a wafer cookie, peanuts, a cherry, and a turtle (the candy) on top. It was kind of funny because a family sitting behind us must have ordered one of the turtle sundaes and upon receiving it loudly proclaimed "WELL THIS DOESN'T LOOK LIKE A TURTLE AT ALL!" It might not have looked like a turtle, but it was really good.