sentence: combine flour salt and sugar sentence: add yeast and oil and mix the dry ingredients sentence: add butter milk and knead the mixture into a dough sentence: wrap the dough sentence: remove the wrap sentence: sprinkle some flour and roll out the dough sentence: stretch the dough sentence: add kalongi onion seeds  on top of the naan and gently press it sentence: place an iron skillet upside down and heat it on the high flame sentence: cook the naan on the pan