the oven to 200ºC/400ºF. Mix all ingredients
for the dough, which will become firm and slightly
crumbly. Use a spring form pan, diameter about
24 cm / good 9", and press out the dough
so that it covers the whole dish, also the sides.
the egg whites stiff. Mix sugar with blueberries
and fold them into the egg whites - gently.
Fill the dish with this mixture and bake for
about 50 minutes.
can use grapes for filling instead of blueberries,
but then you have to use the small, seedless,
sweet green grapes.