"All Bran" Muffins

I adapted this recipe to use the whole box of All Bran so that I wouldn't have to worry about it going bad. We don't eat boxed cereal. This recipe makes 5 dozen, so we put them in the freezer and take out what we need. The recipe calls for leaving the batter in the fridge and baking fresh each time, but I don't have room in my fridge for that.