1. Rinse duck and remove innards. Cut skin around neck and remove tail.
2. Hang duck neck-side-up over a large pot. Boil water.
3. Pour boiling water over the duck until skin is puffed up. Remove boiled water from pot.
4. Combine salt, white pepper, five spice powder and 2 tsp of hoison sauce.
5. Brush mixture on the outside and inside of the duck to marinate it.
6. Let mixture dry - about 2 hours.
7. Combine corn syrup, honey, rice vinegar and brush outside of the duck. Let duck air dry for 12-24 hours.
8. Preheat oven to 450 degrees. Roast duck for 40 minutes.
9. Let meat rest for 15 minutes after cooking. Cut the meat into thin slices and enjoy.