A method is provided for making a banana product comprising providing at least one unpeeled banana comprising banana peel and banana pulp, subjecting the at least one unpeeled banana to a heat treatment at a temperature and for a time sufficient to gelatinize starch present in the at least one unpeeled banana to form at least one heat treated unpeeled banana, and comminuting the at least one heat treated unpeeled banana to form a banana puree. A functional food ingredient is also provided comprising a banana puree including banana pulp and optionally banana peel. According to certain aspects the banana puree is dried and thereby provided in the form of a dried banana powder or flake. The functional food ingredient optionally performs as one or more of various ingredient types, for instance as a gluten substitute, a dip or whip base, a binder, an emulsifying agent, and the like.
