Preheat the
oven
to 160°C (31 5°F/ Gas 2-3).
Lightly grease an oven tray. Put the tomato
halves on the tray and drizzle the cut surface
with olive oil and balsamic vinegar. Sprinkle
with the sugar, oregano and a little salt. Bake
for 1 hour,
or
until very soft.
Put the ricotta
in a bowl and fold in the chopped herbs. Season to
taste. Using two tablespoons, shape the herbed
ricotta into eight long egg shapes. Refrigerate
until needed.
Meanwhile, sift
the flour into a bowl, then add the Parmesan,
Cheddar, spring onion, whole egg and milk. Season
with salt and freshly ground black pepper, then mix
well. Whisk the egg whites until soft peaks form and
gently fold into the cheese and egg mixture.
Preheat a waffle
iron and brush lightly with olive oil. Pour in 4
tablespoons waffle batter and cook until golden on
both sides. Keep warm in the oven while you cook the
remaining waffles (you should have four in total).
To serve, arrange
two waffle halves on each serving plate with two
tomato halves and two ricotta balls on the side.
Garnish with a sprig of oregano.