I had these at a church luncheon/planning meeting several years ago in England. Not much planning got done, but all the ladies sure ate plenty. Me included! I asked the hostess for her recipe and have enjoyed the results many times since.
2 small chicken breasts, poached and shredded
Dip in melted butter, then roll in bread crumbs. Lay out on baking sheet, leaving a few inches in between pillows.
Bake at 375, for about 15 minutes. They should be golden brown and have gotten slightly puffy. Let sit for a few minutes before serving.