Heat the oil in the cooker. Brown the
hens well on both sides. Stuff each hen with 6 prunes
and 4 apricots, interspersing the lemon slices among the
dried fruits. Truss the hens and set aside.
In the fat remaining in the cooker, saute the shallots,
celery and ginger for 2 minutes. Stir in the stock and
salt; scrape up any browned bits that are sticking to
the bottom of the pan.
Place the hens side by side in the sauce. (You may
need to put one hen on its side.) Place the sweet potatoes
on top.
Lock the lid in place and over high heat bring to high
pressure, Adjust the heat to maintain high pressure
and cook for 10 minutes. Quick-release the pressure
and check for doneness by inserting a knife into the
drumstick joint; if the meat is still pink, lock the
lid back in place, return to high pressure, and cook
for another minute or two.
Transfer the hens to a platter; remove the trussing.
Reserve in a warm place. Add the orange zest and Grand
Marnier and boil the sauce over high heat until the
alcohol burns off and the sauce is reduced slightly,
about 3-4 minutes. Serve in a sauce boat, pour over
the stuffed hens.
Note: For cookers requiring a 2-cup liquid minimum
to come up to pressure, add an additional cup of stock.
Cook the hens in a steaming basket to raise them partially
above the liquid. Before adding the orange zest and
Grand Marnier, reduce the sauce by half and continue
as directed.