Wash and trim the broccolini and steam for 5 minutes, until it is crisp yet tender. Drain.
In a small bowl, whisk together the oil, zest, lemon juice, salt and pepper. Drizzle the dressing over the broccolini and toss to coat.
Variations: 1/4 teaspoon crushed red pepper instead of black pepper or 3 tablespoons toasted hazelnuts chopped sprinkled on top