3 tuna tartare with ginger vinaigrette Recipes

yuzu-ginger vinaigrette, yuzu, rice vinegar, soy sauce, sambal, grated ginger, minced garlic, canola oil, mirin or simple syrup, kosher salt to taste, ponzu aioli, mayonnaise, ponzu sauce to taste (dashi, yuzu, soy sauce; pre-bottled versions are available), tartare, sashimi grade ahi, cut into 1/8 inch dice, sweet or red onion, finely diced, japanese cucumber, finely diced, fresh chives, finely chopped, ikura (salmon roe) for garnish, micro shiso leaves for garnish, kosher salt, pickled cucumber, japanese cucumber, sliced into thin rounds, rice wine vinegar, mirin or simple syrup

japanese or cello cucumber , fluted and thinly sliced in 1/8-inch rounds, sushi grade yellowfin tuna, blue fin or big eye tuna, cut into 1/4-inch dice, vinaigrette , recipe follows, sliced scallions, white part only, shiso leaves , cut into chiffonade, coarse salt, freshly ground white pepper, herb salad , recipe follows, croutons , recipe follows, special equipment : 1 ring mold, 3 inches in diameter, 1 1/2 inches deep