Put the pasta in a large pot of boiling, salted water and cook according to packet instructions. Drain, reserving one cupful of the cooking water.
Dice the chorizo. Put it in a separate bowl, large pan over a medium heat. Cook until the oils have been released. Add the scallops and cook for another 5-6 minutes, until defrosted and cooked through.
Add the balsamic vinegar and honey. Stir, then add the cupful of cooking water and the pasta. Toss together, then add the chopped parsley. Serve immediately.