You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: BROADWAY DEBUTS 
Clue: In 2006, in her first big project since giving birth to twins, she starred on Broadway in "Three Days of Rain"
julia roberts

Category: FOOD 
Clue: This salad dressing is actually American; its name may come from the fact that it once contained caviar
russian dressing

Category: COCKNEY RHYMING SLANG 
Clue: It's what your Lucy locket is -- Lucy lost hers, by the way

pocket