Combine the yeast
and 50ml/2fl oz/1/4cup of the water, stir and
leave for 15 minutes to dissolve.
Combine the
flours and salt in a large bowl. Make a central well
and pour in the yeast mixture and the remaining
water. With a wooden spoon, stir to a rough dough.
Transfer to a floured surface; knead until smooth.
Return to the bowl, cover with a plastic bag, and
leave until doubled in size.
Meanwhile,
combine the butter, parsley, spring onions and
garlic in a large frying pan. Cook over a low heat,
stirring, until softened. Season and set aside.
Grease two 23 x
13cm/9 x 5in loaf tins. When the dough has risen,
cut in half and roll each half into a rectangle 35 x
23cm/14 x 9in. Brush with the beaten egg; spread
with the herb mixture. Roll up to enclose the
filling, pinch the short ends to seal. Place in the
tins, seam-sides down. Cover, leave in a warm place
until the dough rises above the tin rims.
Preheat the oven
to 190C/375F/Gas 5. Brush the loaves with milk and
bake until the bases sound hollow when tapped, about
55 minutes, Cool on a wire rack.