Each week we be round up our favorite posts and recipes from our friends at Apartment Therapy's blog The Kitchn. This week, the Kitchn explores clever, inexpensive food gifts in their Un-Gift Guide 2008 series, including these Oreo truffles. Decadent-looking, but they secretly only require three ingredients: Oreos, cream cheese, and chocolate chips. They'll never know... Also on the Kitchn,…