1. Combine parsley, lemon rind, anchovies, and garlic in a small bowl; toss well to combine.
2. Bring 5 quarts water to a boil. Add half of Broccolini to boiling water; cook 4 minutes or until crisp-tender. Remove Broccolini from boiling water with a slotted spoon. Repeat procedure with remaining Broccolini. Place Broccolini in a large bowl. Add lemon juice, oil, salt, and pepper; toss well to combine. Divide Broccolini mixture evenly among 8 plates; top each serving with about 1 tablespoon gremolata.