# Divide the yeast and place into the bowl, add warm milk
, and mix.
# Add 1 egg, 1 egg white, salt, yogurt
, 4 cups flour
into the smooth mixture, knead for a while and add vegetable oil, knead the dough for a while more. Cover it and rest for 45 minutes.
# While resting the dough, prepare the stuffing; boil the potato
es, mash by the help of a fork, add so finely sliced onion
slices which are also kneaded with salt, add finely sliced parsley, black pepper
, crushed red pepper
, vegetable oil and mix very well.
# Divide the rested dough into 2 pieces, roll out each piece into squares whish are a little bit bigger than service plate.
# Cut the rolled out dough into 16 small squares. Put 1 tsp mixture of mashed potato
on the middle of the small squares, and pack them. (You must get 32 pieces of borek)
# Place the boreks on the greased oven tray. Rest them on the oven tray for 20 minutes, spread yolk all over.
# Place the tray into cold oven, and set the oven to 356 F, and cook the boreks for 30 minutes. Serve hot or warm.