Sift flour, baking powder and salt; cut in butter, add milk and mix to a smooth dough.
Divide into six portions; roll each on floured board.
Place cored apple in the middle of each portion of rolled dough; fill the cavity of the apple with the cinnamon mixture.
Top with a pat of butter. Fold dough over apple; wet the edges to hold firmly in place.
Place apples on a greased baking sheet. Bake at 350 until apples are tender, about 40 minutes.