3. Knead the dough by hand until smooth, about 10 minutes.4. Add the room-temperature butter and knead by hand until the dough is soft and smooth, about 7 to 8 minutes.
6. Remove the dough, press down with your hands to release the gas, and divide into 8 equal portions.7. Roll into a ball, cover with plastic wrap, and let rise for about 15 minutes.
8. Remove the dough one by one, de-gas it, roll it out with a rolling pin, and shape it into a long ball.9. Place in a mold, cover with plastic wrap and let rise until doubled in bulk, about 40 minutes.