Test cook Becky Hayes reveals the secrets to Foolproof Spaghetti Carbonara. Then, host Christopher Kimball answers cooking questions in Letters to the Editor. Next, host Christopher Kimball explains the science behind proteins in eggs. Then, tasting ... (more)expert Jack Bishop challenges Chris to a tasting of Jarred Green Olives. And finally, test cook Julia Collin Davison shows Chris how to make the best Summer Pasta Puttanesca.