This is a tasty way to get your fiber. The batter lasts for six weeks, covered, in the fridge. I used this recipe when I was pregnant with all three of my children, and it did it's job beautifully! But these are so tasty, make sure you don't eat more than one or two at a time or the fiber might come back to bite you! Time is preparation only. Servings are based on 1/3 cup batter per muffin.