Step 1

Preheat oven to 180°C. Brush a 6cm-deep, 9.5 x 22cm (base measurement) loaf pan with the melted butter or oil to grease. Line the base and sides with non-stick baking paper.

Step 2

Sift the flour, baking powder and cinnamon together into a large mixing bowl. Stir in sultanas and sugar, and make a well in the centre.

Step 3

Combine the milk, butter, egg and banana in a large jug. Pour into the centre of the flour mixture and use a wooden spoon to stir until combined.

Step 4

Spoon the mixture into the prepared pan and bake in preheated oven for 45-50 minutes or until a skewer inserted into the centre of the loaf comes out clean. Set aside for 5 minutes before turning onto a wire rack to cool.

Step 5

Once cool, cut the loaf into 1cm-thick slices. Lightly butter each slice and wrap individually in plastic wrap. Place in the freezer until required.