Cakes are the mainstay of baked goods, have a long history and are desired by consumers all over the world (Zhang, Zhang, & Wu, 2008). Cakes can be nutritious, have a light and fluffy texture, convenience, and variety. The constant change in consumer demand has driven the research and development of food with health functions. Currently, functional cakes are mainly made from wheat flour mixed with other ingredients, to produce products such as purple potato health cake, kiwi chiffon cake, sugar-free gummy health cake, eggshell powder low-sugar cake, tartary buckwheat cocoa cake, low-sugar pumpkin buckwheat cake, and many others (Zhang et al., 2018). Wheat products, however, contain gluten, which can cause celiac disease and other allergic conditions (Armstrong, Hegade, & Robins, 2012; Fritz & Chen, 2017). Celiac disease is a lifelong intolerance to the gliadin and glutenin protein components of wheat and to similar proteins found in rye, barley, and oats (Ludvigsson et al., 2012). Celiac disease patients who eat gluten suffer from