Arabian Bread ka'kat

You will need a medium sized bread bowl, 2 large baking sheets, and a pastry brush. In the bread bowl dissolve the yeast and sugar in the warm water. Add 2 to 3 cups flour, a cup at a time, stirring constantly in same direction until a thick dough begins to form. Then stir 100 times in the same direction, about 1 minute. Let rest for 10 minutes. Add the salt, butter, and mahleb, and stir; contiue to add flour using a wooden spoon to stir it in. When the dough will no longer take any more flour, turn it out onto a lightly floured surface. Knead for 8 to 10 mihutes, or until smooth and elastic, adding flour only when necessary. Rinse out the bread bowl, oil lightly, and return the dough to the bowl. Cover with plastic wrap and allow to rise until doubled in volume, approximately 1 and 1/2 hours. Punch down dough and divide into 16 pieces. On a lightly floured surface, roll each piece under your palms into a cigar shaped rope 6 to 7 inches long. Pinch together the ends of each rope to form an oval shaped loop. Place the ka'kat on lightly oiled baking sheets, at least 1/2 inch apart. Cover and let rise for 30 minutes. Place the racks in the upper part of the oven, and preheat the oven to 400 F. Just before baking, brush the breads with egg wash and sprinkle on the sesame seeds. Bake for 20 minutes, or until nicely browned; switch the baking sheets after 10 minutes. Cool slightly on a rack, then wrap in a cloth to keep warm. Serve warm.