Frozen custard isn’t just a summertime treat in Wisconsin. When the temperature drops, we’re still willing to bear the cold for a scoop of butter pecan or mint chip. Kopp’s Frozen Custard has provided Milwaukee-area patrons with their custard fix for nearly 60 years. The fountain menu provides plenty of indulgent options in generous quantities, but the quality of the product is what really keeps customers coming back
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Kopp’s Frozen Custard
Multiple locations

http://www.kopps.com/

Runners-up: Leon’s Frozen Custard, Gilles Frozen Custard