Sub Zero Ice Cream will open by late April at 12230 W. Lake Houston Parkway, Ste. 250, Houston. The ice cream shop uses liquid nitrogen to instantly freeze a guest’s choices into a creamy ice cream. Guests with dietary restrictions can choose from a variety of milk that includes regular, low-fat, lactose-free and sugar-free as well as other vegan options, custard and yogurt. Guests can choose from several flavors, including butterscotch, mango or Nutella, and add “mix-ins,” such as mixed berries, Oreos and peanut butter cups. www.subzeroicecream.com