It was 2:30pm on an overcast Thursday when I first visited Mister, Yaletown’s month-old artisan ice cream shop. The lineup was out the door. Considering the weather and time of day, I was surprised. But then I saw what was drawing the crowd: plumes of liquid nitrogen smoke billowing from a mixer containing a single portion of ice cream. The sight was mesmerizing and I immediately felt desperate to try a scoop, wondering how it would differ from traditionally-made ice cream.