This cake is one of my new favorites, and has me asking “why have we never been to Vietnam?!” because there are so many naturally gluten free desserts that are absolute dream boats of buttery, gorgeous, flavors and textures. Let’s back up. My dear friend and former roomie, Leslie Nguyen-Okwu (who happens to be an incredible journalist, speech writer, and all around amazing human – check her out here) sent me a recipe for Vietnamese Pandan Honeycomb Cake ages ago because it’s one of her favorites (her mother is Vietnamese and her grandmother still makes this occasionally) and because, lo and behold, it only requires tapioca starch which, as you…