Wash and dry the broccolini (make sure you dry it well!).
Pre-heat the oven to 180C fan-forced and line a baking tray with baking paper.
Chop each stem in half and bundle the two halves together.
Wrap each bundle in prosciutto and place on the lined baking tray.
Mix the olive oil, balsamic and lemon juice together and then brush over the bundles making sure you brush the florets well.
Bake for 15-20 minutes or until the tops are nice and crispy.
Serve warm.