1. Preheat the oven to 190°C/375F

2. Beat the butter, sugar and egg until smooth, then mix in the flour, white chocolate and pistachio nuts and ½ tsp salt.

3. Spoon the mixture onto baking sheets lined with greaseproof paper in large round blobs, you should get around 20 cookies from this mix. Make sure they are well spaced as the cookies will spread, you may have to cook the cookies in batches

4. Bake for 12-14 minutes until just golden, but still quite pale and soft in the middle.

5. Cool on the baking sheets for 5 minutes, and then lift onto wire racks to cool.

Chef tip
Make these cookies with any flavours you want, try using candied cherries and white chocolate or milk chocolate with pecans