Best Baking Tips: Butter, Powdered Sugar, Cake Pans Here's an afternoon collection of some of the best tips from our archives. Got a baking tip or question? Email us! • What is whole wheat white flour? • Grease and sweeten your cake pans • Gingerbread houses: Apartment Therapy versions • How to keep cakes from sticking to the pan • What's the difference between salted and unsalted butter? • Baking with powdered sugar • Get rid of eggshell bits with a grapefruit spoon• How to crack an egg with one hand • How to frost cakes without making a mess • How to get rounded muffin tops • What's cake flour?