WINTER SNOBALLS FOR HOUSTON Just in time to serve up a white Christmas — at least before a few pumps of flavoring are added to your order — MAM’s House of Ice has opened its first-ever non-wheeled, year-round location. It’s at 1040 W. Cavalcade St. in Sunset Heights, about a mile east of the popular mobile storefront’s longstanding trailer-parking spot. That means snoballs (along with a few warmer dessert-y and snack-y items added to the menu) will now be available year-round. [b4-u-eat; previously on Swamplot] Photo: Mam’s House of Ice