Banh Tet and banh chung (the square cake version) are available year long and for the Lunar New Year in Vietnam. It's a sticky rice cake with various fillings, some are sweet and some are savory. Mung beans, pork, and sticky rice are the core ingredients. Raffia string is usually used to tie the cakes but I've used kitchen twine. Also, traditionally these are more elaborately trussed than tied, like I did here to simplify. I wrapped the cakes in foil, that's Andrea Nguyen's move. Once the cakes are cooked you can wrap them in gold or red plastic ribbon for luck in the new year.