1 teaspoon vanilla bean paste or extract (optional)
75 g (3 oz) white chocolate chips
75 g (3 oz) macadamia nuts, roughly chopped
250 g (8 oz) plain flour
1 teaspoon bicarbonate of soda
Line 2 baking sheets with nonstick baking paper. Place the butter and sugar in a bowl and beat together using a hand-held electric whisk until light and fluffy. Add the egg, milk and vanilla bean paste or extract, if using, and beat well. Stir in the chocolate chips and macadamia nuts, then sift in the flour and bicarbonate of soda and mix gently to form a soft dough.
Drop 14–16 small spoonfuls of the dough, well spaced apart, on to the prepared baking sheets.
Bake in a preheated oven, 200°C (400°F), Gas Mark 6, for 12–15 minutes until pale golden. Leave to cool on the sheets for 2–3 minutes, the transfer to wire racks to cool completely.