Mu shu pancakes steam quickly; warm eight at a time so they will stay pliable. Set out the duck and all the accompaniments so guests can fill their own pancakes.
How to Score a Duck Breast
To render the fat from a duck breast and ensure crisp skin, use a sharp knife to score the fat side of each breast half in a 1/2-inch crosshatch pattern. Be sure to slice entirely through the skin and fat, but donâ€™t penetrate the meat or it may dry out and overcook.