To make the vinaigrette, whisk the white wine vinegar and olive oil together with some seasoning, then set aside. Boil a pan of water, add the broad beans and boil for 2-3 mins.
Drain and plunge into iced water, then leave to cool a little before removing the skins.
Cut the baby courgettes into 4-5 pieces on the diagonal. If you are using medium courgettes, cut into four lengthways and slice into 5mm thick pieces.
Heat the olive oil in a frying pan over a medium heat, add the courgettes. Cook, stirring for 5-8 mins, until they are a light golden colour.
Add the broad beans and some seasoning, and cook for another 30 secs.
Remove from the heat and stir in the vinaigrette while still warm.