In this simple, thin-crust pizza, the sweetness of caramelised onions is balanced by the saltiness of feta cheese.
Cooking the onions in sugar and balsamic vinegar gives them a rich flavour without adding fat.
The onions took a little longer to caramelise, but I may have sliced too thick. I made half the amount of onions, because I wanted to use half the dough for a plain version for the kids. In the end I wished I had made the entire amount. Felt lighter - no wonder since it had less cheese. Will use as a starter in future. - 24 Jan 2014