In bits of useless trivia, Wentworth Miller does a thing on Facebook he calls Mailbag. Here is a fun Q&A about Captain Cold's favorite ice cream:
Q: favourite flavour of ice-cream? (my 7 year old nephew asked me to ask you that! he's a big fan of #CaptainCold and he assumed ice-cream was his fav food!)
A: Excellent question. And assumption. I'd never considered what Captain Cold's favorite food might be. But "ice cream" feels right. Vanilla Bean maybe. On a wafer cone. With rainbow sprinkles. Just because.
Speaking for myself, my favorite/favourite flavor/flavour depends on a) what's available and b) mood. When at Ye Olde Neighborhood/Neighbourhood Ice Cream Shoppe, I tend to gravitate toward anything involving Oreos, chocolate chips, or Heath Bars. At home in my freezer, you're likely to find a pint of Ben & Jerry's Milk & Cookies or Half Baked.
So there you go. Rainbow sprinkles.
And according to the DC Super Pets Character Encyclopedia, Captain Cold has a husky (of course), named Admiral Peary. ...Admiral Peary was thought to be the man who first found the geographic North Pole (although new research indicates he probably missed it by about 60 miles).
I need all of this to become canon.