Fry the onion in the butter for 5 mins, then
add the apple and cook briefly. Cool, then mix
with remaining ingredients and seasoning.
Use to stuff the neck end of the bird, then
roll any leftovers into balls. Or, pack the whole
mixture into a 1kg loaf tin and top with extra
sage leaves. Bake with turkey for 30-40 mins.
Drain off any fat and serve sliced.