Experiment with recipes and keep a folder of your favorites. It's amazing how many recipes are published that don't actually work, so it's always wise to experiment with a new recipe before that big dinner party. Anytime I bake something I like, I add it to my folder of favorites, along with any changes I made to the recipe (e.g.: if I added walnuts, or a teaspoon more vanilla, etc.) Over time, you'll have your very own "best-of" baking cookbook created by you!
Get Sprinkles Cupcakes' recipe for Dark Chocolate Frosting.