In the popular Disney movie, Tiana's adventures take place around New Orleans. So "Tiana's beignets" are simply New Orleans beignets. And you don't need any specific recipe (although I recommend the one below). In Tiana's Cookbook, the recipe calls for baking soda and baking powder instead of yeast to leaven the dough. But this is to make the recipe faster and easier for young chefs, princes, and princesses.