The Taiwanese seem besotted with food. The National Palace Museum in Taipei has almost 700,000 objects in its collection, but the most popular two items are a piece of jade that looks like a pak choi cabbage and a stone which resembles a slice of pork belly. You can judge a nation by what it treasures most — and we only had three days in Taipei, so we decided to let the city’s culinary life dominate our experience.