Marisa Churchill, a former contestant on Top Chef, loves to put healthy spins on yummy classics. Her cookbook, Sweet & Skinny ($24), is chock full of delicious desserts that won't have you hitting the gym twice as hard after you eat 'em. Last week, Marisa shared with us her recipe for PB&J Cookies. This week, it's all about macaroons. Check out her low-cal recipe below!