This one seems really easy:
* Standard recipe *
Beat 2 eggs until fluffy. Then combine with:
250g self raising flour
pinch of salt
6 tablespoons of butter
380 ml milk / water / mixture of the two
1 tablespoon sugar
Stir until smooth. Ladle into waffle maker when ready, leave for 2 ½ minutes, remove and leave for 1 minute to cool.
You can also add chocolate chips to the batter, but I prefer to add these after cooking.
You do not need to use any butter or milk in the recipe if you are off dairy: water works just as well, and you can use vegetable oil or olive oil. I find this makes the waffles less sweet though, so tend to reduce the quantities if I'm using oil, and add a pinch more sugar instead.
No excuse for me not to try then, eh?