Peel
and cut guavas in half. Scoop out the seeds. Tie guavas in a
muslin cloth and boil with 100 g sugar and just enough water
to make guavas soft. Remove guavas from muslin cloth and
spread in an ovenproof dish.
Mix the
flour and sugar. Rub the flaked butter in flour by hand till
it resembles coarse crumbs. Sprinkle over the guavas. Bake
at gas mark 1-2 130º C – 150º C for 30 minutes or till the
top is golden brown, alternatively place under the grill for
a few minutes.