Preparation Soak noodles in a medium bowl of boiling-hot water 10 minutes. Meanwhile, blanch carrot in boiling water until softened, about 45 seconds. Drain. Rinse under cold water to stop cooking, then transfer to a small bowl along with cucumber, jalapeño, vinegar, sugar, 1 tablespoon lime juice, and 1/4 teaspoon salt. Let stand 5 minutes. Reserve 2 tablespoons liquid and drain pickled vegetables. Drain noodles and rinse under cold water, then drain and pat dry. Toss noodles with remaining 3/4 teaspoon lime juice and snip with kitchen shears 5 or 6 times. Fill a shallow pan or pie plate with warm water. Soak 2 rice-paper rounds until they begin to soften, about 30 seconds, then let excess water drip off and stack soaked rounds on a work surface so that they overlap by all but 1 inch on either side. Put 2 pieces of romaine on bottom third of round. Top with one eighth of noodles (about 2 tablespoons), tofu (4 sticks), bean sprouts (about 2 tablespoons), herbs (3 tablespoons), and pickled vegetables (3 tablespoons). Roll up tightly around filling, folding in sides. Make 7 more rolls in same manner. Stir together hoisin sauce, peanut butter, water, and reserved 2 tablespoons pickling liquid. Serve rolls with dipping sauce. Cooks' note:Rolls and sauce can be made 4 hours ahead and chilled, rolls covered with damp paper towels and then plastic wrap.◊
Preparation Soak noodles in a medium bowl of boiling-hot water 10 minutes. Meanwhile, blanch carrot in boiling water until softened, about 45 seconds. Drain. Rinse under cold water to stop cooking, then transfer to a small bowl along with cucumber, jalapeño, vinegar, sugar, 1 tablespoon lime juice, and 1/4 teaspoon salt. Let stand 5 minutes. Reserve 2 tablespoons liquid and drain pickled vegetables. Drain noodles and rinse under cold water, then drain and pat dry. Toss noodles with remaining 3/4 teaspoon lime juice and snip with kitchen shears 5 or 6 times. Fill a shallow pan or pie plate with warm water. Soak 2 rice-paper rounds until they begin to soften, about 30 seconds, then let excess water drip off and stack soaked rounds on a work surface so that they overlap by all but 1 inch on either side. Put 2 pieces of romaine on bottom third of round. Top with one eighth of noodles (about 2 tablespoons), tofu (4 sticks), bean sprouts (about 2 tablespoons), herbs (3 tablespoons), and pickled vegetables (3 tablespoons). Roll up tightly around filling, folding in sides. Make 7 more rolls in same manner. Stir together hoisin sauce, peanut butter, water, and reserved 2 tablespoons pickling liquid. Serve rolls with dipping sauce. Cooks' note:Rolls and sauce can be made 4 hours ahead and chilled, rolls covered with damp paper towels and then plastic wrap.◊