Cook the duck according to pack directions. Meanwhile, mix the hoisin sauce sachet with the sesame oil and vinegar.
Toss the salad in 2 tbsp of the dressing. Shred the duck with 2 forks and place on top of the salad, drizzle with the remaining dressing and scatter over the sesame seeds and serve with the pancakes on the side.
Add strips of cucumber and spring onion if you prefer a more traditional approach to these pancakes.