I've been told by Russians that the best way to translate "I love to cook!" is Кулинария -- моё хобби ("The culinary arts are my hobby"). Of course, you can say something like Я люблю готовить (еду), and thus avoid sounding like a новый русский yuppie poseur who always uses foreign words, but я люблю готовить doesn't necessarily convey the geek-pleasure that some people get from learning and practicing new techniques in the kitchen.