Method

1. Preheat oven to 180°C. Line 2 large baking trays with baking paper. Use an electric mixer to beat the butter and sugar in a large bowl until pale and creamy. Add the egg and beat until well combined. Add the flour and baking powder and stir to combine.
2. Add the sultanas, chocolate chips, oats and half the cornflakes to the flour mixture. Stir to combine.
3. Place the remaining cornflakes in a medium bowl and use a wooden spoon to lightly crush.
4. Roll 1-tbs portions of the sultana mixture into balls, then dip in the crushed cornflakes to lightly coat. Place on the lined trays. Flatten slightly.
5. Bake, swapping the trays halfway through cooking, for 15 mins or until light golden. Transfer to a wire rack to cool completely.