[5] By 1960 the Kopp's stand was successful enough that Elsa felt comfortable experimenting with more exotic frozen custard recipes.
Initially she mixed chocolate and vanilla, a controversial act in the early frozen custard community.
[11][12] In September during his 2004 campaign for reelection, Vice President Dick Cheney made an unannounced visit to a Kopp's Frozen Custard location at the suggestion of Bart Starr.
[13][14] In June 2010, Vice President Joe Biden visited a Kopp's Frozen Custard location while campaigning for Democratic senator Russ Feingold.
[15] Borkin appeared on Fox & Friends to discuss the incident, which was covered by local and other national news agencies.