Wonderful carrot bran muffins that are low in fat, yet, I find, taste almost buttery. They have a wonderful moist yet fluffy texture, and not too sweet delicious cinnamon flavour and aroma. The batter is quite thin, which creates smooth domed muffin tops. I have always made these with the soured milk instead of buttermilk. And yes, there really is 1 tbsp cinnamon in this recipe, it is not a typo! NOTE: Do not use muffin liners with this recipe - they are too moist and delicate for them so the muffins will stick to the liner.