Tuna Tartare on Daikon Slices

Ginger—in both fresh and pickled forms—adds a bright, peppery contrast to the rich raw tuna in this tartare. If your grocery store sells sushi, look for pickled ginger in that vicinity or in the Asian section. Otherwise check Asian or specialty food markets. Daikon, a large white variety of mild radish, slices up into crisp rounds, ideal for serving the tartare. You can use slices of cucumber instead. Ginger juice is very easy to make: finely grate about 1½