In a medium-sized bowl combine barley flour, baking powder, salt and herbs. In another bowl, stir together cottage cheese, milk and oil. Add this mixture to the flour mixture, stirring until moistened.
Turn out onto a floured surface and knead 5 or 6 times until smooth. Place on a greased baking sheet and pat into an 8” (20 cm) circle.
With a floured knife, cut circle into 10 wedges and separate each wedge slightly. Brush with beaten egg yolk and, if desired, sprinkle with herbs or parsley.
Bake at 400ºF for 30 minutes until slightly browned.