Peel, then slice
the onions into thin wedges. Thinly
slice the garlic. Heat the butter and
oil in a large wok or frying pan, tip in
the onions and garlic and cook over
a medium-high heat for 15 minutes,
stirring every now and then until
golden. Stir in the sugar and cook a
minute or two longer. Season with
salt and pepper. Preheat the oven to fan 200C/conventional 220C/gas 7.
Put the pizza
bases on two oiled baking sheets.
Spoon the onion mixture over the
pizza bases. Now crumble over
the feta and scatter with rosemary.
Grind over some black pepper
and drizzle with a little oil. Bake
for 10 minutes and serve with a