Add egg, vanilla and coffee and beat well until combined and creamy.
Mix slowly flour, soda, bicarb and salt until totally combined.
Add choc chips and nuts, mix.
Form into balls (whatever size you like your cookies, I used about a tablespoon, you can use more if you like a bigger cookie). Place on a sheet of baking paper on a cookie tray, spaced well apart as the cookies will spread.
Bake at 140 degrees for 20-25 minutes.
Allow to cool for 10 minutes before taking them off the paper as they will harden during this time.