HOW TO DOUBLE UP: Double the batter in a large bowl, and bake everything at the same time. Make a standard-size Bundt for yourself, and for gift-giving, do the second batch as mini Bundts: Spoon about 6 tablespoons batter into each of 6 mini Bundt molds coated with baking spray. Spoon remaining batter into a 10-cup Bundt pan coated with baking spray. Bake both pans on the middle rack. Rotate pans after 15 minutes; the minis will be done in about 20 minutes, and the large one should take the time indicated in the recipe.