Entanglement was described by Schrödinger as the quintessential quantum mechanical phenomenon. Within recent years it has become a central resource for many protocols in quantum information processing. I will discuss methods to produce polarization entanglement between correlated photons, their implications for the foundations of quantum mechanics, and their application to a number of quantum communication applications, including teleportation, quantum key distribution, and relativistic quantum cryptography. Time permitting, a quick lesson in quantum cooking may be given.