I made this cake with teff flour. It available at most natural foods stores and online, but I've given measurements for using all-purpose flour. You might want to reduce the salt to 1/2 teaspoon in the batter if you do. The hardier taste of whole grains seems to call for a little more salt to be added, to my taste. In place of the vanilla bean, you can use 1 teaspoon of vanilla seeds or paste for the bean. For more on vanilla, check out my Vanilla FAQs. Your bananas should be ripe but not…
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