These chocolate pistachio cookies are soft, chewy, and packed with texture and flavour, thanks to golden toasted pistachios and heaps of melty milk chocolate chips.
Preheat the oven to 150C / 300F (130C fan-assisted).
Spread the pistachios on a tray and toast for 10 minutes. You can skip this step if you like, but it helps bring out the pistachio flavour and give them a bit of extra crunch. Tip onto a plate and set aside to cool.
Turn the oven up to 180C / 350F (160C fan-assisted).
In a large bowl, beat together the butter, golden syrup and sugar until fluffy.
Beat in the egg and the vanilla until well combined.
Add the flour and the baking powder and mix well – you should now have a sticky, light dough.
Fold in the milk chocolate chips and pistachios.
Use a large ice cream scoop the dough, flattening off against the side of the bowl, then roll the dough into a ball with your hands. It’s an easy way to get 20 equally sized cookies. Alternatively, you can weigh the dough - each ball will weigh about 55g each.
Place the balls of dough on baking sheets lined with greaseproof paper, being sure to place each cookie at least an inch apart so that they don’t stick together when they spread. Squash each of them a little with the flat of your hand.
Bake for 8-10 minutes until golden at the edges. Get them out of the oven before they’re fully browned so that they stay chewy when cool.
While still hot, place a tumbler over a cookie and gently move it in small circles to bring the cookie into a neat circle. Repeat with all of the cookies - this only works when they are fresh from the oven and soft.
When cooled enough to firm up a little, transfer to a wire rack to cool completely.