Persian New Year noodle soup packed with herbs, beans, and lentils, made creamy by tempering in kashk - fermented whey - at the very end, so it thins and blends into the broth instead of clumping or curdling.
Ladle a little of the hot soup over the kashk in a separate bowl while whisking to thin it, then stir this loosened kashk back into the pot - this tempering step keeps the kashk from clumping or curdling.
7.Serve hot, topped with the reserved fried onions, a drizzle of kashk, and a spoonful of hot mint oil.