Preheat oven to 375°F with rack in middle. Butter muffin pan. Whisk together flour, oat bran, sugar, baking powder, baking soda, salt, and cinnamon in a large bowl. In a separate bowl ...

Set aside and allow to cool slightly. In a separate bowl, whisk together the spelt flour, almond flour, oat bran, flax meal, brown sugar, baking soda, baking powder, and kosher salt. Add the egg ...