1. Set oven to 160C (fan-forced) or 175C for gas or electric. Have a Thermomat or prepared baking trays ready2. Insert the butterfly. Add softened butter and sugar into the TM bowl. With MC in place, mix for 20 sec / speed 3-4 3. Scrape down bowl. Add egg, vanilla and salt and mix for 15 sec / speed 3-4 4. Scrape down bowl. Weigh 100 g of the flour into the bowl and mix for 10 sec / speed 45. Remove butterfly, add the remaining 170 g of flour and mix for 30 sec "Dough mode" 6. Add choc chips and mix 15 sec / "Counter-clockwise operation" / speed 47. Place teaspoons of mixture, rolled into balls, onto the Thermomat or trays. Leave room for some spreading and flatten with the back of a fork8. Bake for 12-15 mins or until just starting to brown. Yum! Makes 30+