Step 1: 1) grease two baking sheets. Preheat the oven to 180 degrees celsius.
Step 2: 2) cream the butter, sugar and vanilla essence. Beat in the egg.
Step 3: 3) sift in the flour and salt then stir in the chocolate chips and walnuts (if using).
Step 4: 4) place heaped teaspoonfuls of mixture onto baking trays (space well apart) and bake for 12-15 minutes until golden brown.
Step 5: 5) watch people come running at the smell of freshly baked cookies!!