I dont want to.
Boiling green vegetables without oversoftening requires an aggressively salted pot of water held at a rolling 212 degrees Fahrenheit. Controlling the final texture of broccolini depends entirely on stopping the residual carryover heat immediately after draining. Steaming or boiling brassicas past the optimal window collapses their internal cell walls, releasing trapped sulfur compounds and creating a dull, mushy mouthfeel. Emulsifying the balsamic vinaigrette beforehand ensures the oil droplets suspend uniformly rather than breaking apart on contact with the warm vegetable.
Thoroughly drying the blanched stems on paper towels prevents the lingering surface moisture from diluting the clinging dressing. Combining the components just before serving maintains the crisp structural integrity of the stems against the acidity of the vinegar.