Preheat the oven to moderate (180°C). Grease a deep 19cm square cake pan, line the base and sides with baking paper.
Combine the butter, brown sugar and spices in a small bowl; spread over the base of the prepared pan.
Peel, core and slice the apples into rings. Arrange the apple rings over the brown sugar mixture.
Beat the extra butter, vanilla, caster sugar and egg in a small bowl with an electric mixer until light and fluffy.
Stir in the nuts, then the sifted flour and milk in two batches.
Spread the mixture over the apples in the pan. Bake in a moderate oven for about 1 hour or until cooked when tested. Stand for 5 minutes before inverting onto a wire rack to cool.
Suitable to freeze. Not suitable to microwave.
Photography by Brett Stevens.