Anyhow, for anyone who cares, here's my rundown of the best alternatives to butter:
1. Nothing. Especially in baking, there is nothing that can really replace butter. Yes, it's a fat. Yes, it's a big daddy of fats. But it tastes better in cookies, cakes, just about anything sweet that includes leavening and flour. There's a bunch of chemistry behind this. I read about it once. It gave me a headache. The bottom line is any other fat will weigh down baked goods. This is not a good thing, unless you are making a pound cake. Even then, it's better with butter. Rather than stressing about using this natural fat, I balance my indulgences with healthy meals beforehand. Cake or brownies for dessert? Have a soup with lots of veggies and a side salad (hold the bottled transfat dressing). Clear dinner dishes. Slice heaping helping of cake. Insert fork. Enjoy.
2. Lard. You heard me. This is a relatively new discovery for me. After a grueling adventure with tamales I had a bit of manteca left in the tub. A fortuitous recipe for biscuits from Gourmet magazine found itself in my paws. Following directions, I carved out a few tablespoons of rendered pig fat and added it to the other ingredients. Listen. I am a decent cook. I am, however, a dismal failure at biscuits. Or rather I was until I discovered wonderful, lovely lard. Paula Dean would be proud. Like butter, lard is a natural fat that has too long had a bad rap. Good for flaky pastry recipes. Probably not so much so in a cake. Still, I challenge you to try lard biscuits and not sing praises. Learn to love lard, in moderation.
3. Canned pumpkin. This is a darling of the Weight Watchers crowd, and for good reason. Applesauce and prune puree throw the wet balance off in a recipe. They also leave a strange aftertaste and ruin the crumbly good texture of any product they touch, turning it dense and spongy to one degree or another. Canned pumpkin, admittedly, does fiddle a bit with texture, but in a dense recipe like spice cake it's a pretty decent substitute. It's a surprisingly decent substitute in chocolate cake. While I'm still more likely to use butter or canola oil (healthy fat), I'll do a pumpkin sub if I happen to have a can in the pantry. Check online for recipes from Weight Watcher folks.
Finally, please do not attempt to replace baked good fats with black beans. It is a vile idea. If you want black beans, eat a burrito.
Here's the Epicurious link to those lardicious biscuits: www.epicurious.com/recipes/food/views/Crust-Buttermilk-Biscuits-241183