Q: How I can save lots of money on fresh food such as lean meat, produce, milk, eggs and fruit?

For the past few months, I've enjoyed watching Mario Batali talk one-on-one -- that is, type one-on-one -- with seemingly every fan he's got. They've been asking him on Twitter about the best proportion of cooking water to polenta (5:1), whether semolina flour is safe for diners with wheat allergies (no way), recommendations on where to eat in Barcelona (this place), whether to use black or ...