The invention provides a gluten-free flour formulation containing a plurality of ingredients. Each ingredient in the formulation is substantially or completely free of gluten protein. In one embodiment, the formulation meets the requirements for kosher certification. The gluten-free flour formulation includes at least two ingredients of the following: ground or partially ground particles of dried roots of a root-tuber crop, dried kernels or nuts of a nut-tree and dried fruits of a species in the Musaceae family. In some embodiments, the gluten-free flour formulation includes ground or partially ground particles of dried cassava root, almond nuts and dried plantain fruits, wherein the proportions of the ground cassava root, almond nuts and dried plantain fruits range from about 15% to about 85%, from about 20% to about 60%, and from about 5% to about 30%, respectively.