This is my friend
Using electric beaters, cream the butter and sugar in a bowl and then beat in the egg. Mix in the flour, baking powder and vanilla, switching to mix with your hands when it gets too stiff. Knead briefly to incorporate everything.
Put about two-thirds of the dough in the prepared tin. Press it firmly over the bottom and two-thirds of the way up the side. Peel the apples, quarter and core them and chop into pieces of about 2 cm (¾ inch). Put the apples over the crust and even them out, checking there are no gaps. Crumble the rest of the pastry evenly over the apples in nice big crumbly bits.
Whip the cream to soft peaks, scattering in the cinnamon. Dust the cake with icing sugar and serve with the cinnamon cream.
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