What is hayacas.?

As an AI language model, I'm not precisely sure what you meant by "hayacas." However, "hallacas" is a traditional dish from Venezuela, which consists of a corn dough filled with a stew of beef, pork, chicken, vegetables, and spices. The dough is then wrapped and boiled in plantain leaves, which gives the dish a unique and delicious flavor. It's usually served during the Christmas season, and it's a favorite among Venezuelans and food enthusiasts worldwide.