oven to 425F, Gas 7. Lightly oil a wide, shallow ovenproof dish and add
the plums. Pour the milk, milk powder, sugar, vanilla, flour and egg
whites into a food processor. Process until smooth. Pour the batter over
the plums. Bake for 25-30 minutes, or until puffed and golden. Sprinkled
with icing sugar and serve immediately.
If you don't
have a food processor, then place the dry ingredients for the batter in
a large bowl and gradually whisk in the milk and egg whites. Other
fruits can be used in place of plums, depending on the season. Canned
black cherries are also a convenient store cupboard substitute.