More tips
1. For chocolate flavour, substitute 1 tbsp cocoa powder for the same quanity of flour.
2. For a chunkier texture, use coarsely chopped chocolate instead of chocolate chips.
3. For mocha flavour, use coffee essence instead of vanilla essence.
4. For nutty flavour, add whole or chopped macadamia nut, walnut or hazelnut.
5. For fruity flavour, add chopped dried fruit, such as raisins, sultanas, etc.