If you’ve ever tried to chop nuts on a cutting board, you’re familiar with the sometimes unpredictable results: nuts all over the kitchen. We’ve discovered that the self-contained Zyliss food chopper is a good solution. It neatly chops uneven or messy items like nuts, chocolate, or onion into a 1-cup container and prevents the flying-food phenomenon. The sides of the chopper open up neatly for cleaning the blades. $19.99 at Chef’s Catalog.