Mild Asian curry paste is flavored with curry powder and clarified butter. The paste has a wonderful complex flavor not present in curry powder. Look for curry paste in the Asian-foods section of the grocery store.
Chopped raisins can be used in place of the currants.
A few dashes each of curry powder and chili powder can be used in place of the Asia curry paste. The flavor will not be as rich.
Prepare the nests and the filling one day ahead. Cover the nests and store them at room temperature. Cover and refrigerate the filling. When ready to serve, refresh the nests before filling them. Place the nests on a cookie sheet and bake them at 350°F. for 5 minutes. Fill and serve them immediately.