Tak all ingredients except milk in a large bowl. Then gradually add lukewarm milk and make a soft dough. (Add 1-2 tablespoon of water only if needed.)
Coat the dough with a thin film of oil and cover it with a towel. Let it rest in a warm place for 60 to 90 minutes until the dough rises and is doubled in size.
Puncture the dough to release air. Knead the dough for 1-2 minutes then roll into a log.
Divide the dough into 9 portions by cutting with a knife. Turn each portion into a small flat ball by kneading between the palm. (Move dough in circular motion between palm until it form a ball.)
Preheat the oven on 400 F.
Dust each dough with flour then roll each ball into a thin pita bread with the help of a rolling pin.
Roll all the pita and spread all separately on a flat surface. Let them rise for at least 7-10 minutes ( by the time you'll have rolled all pitas, it will be more than 10 minutes.)
Now, turn on the broiler element of the oven. We want the bake and broiler element to work simultaneously. (If it doesn't work simultaneously, it's ok, the pita will just take longer to bake.)
Bake on the middle rack. Place 3 pita bread at a time but you may bake less or more as per the size of your oven.
When pita bread is fully puffed, it is ready. It takes 2-4 minutes for a pita to puff up and cook fully.
Take pita out from the oven and cover with a towel to keep it fresh and warm. Work in batches and bake the remaining pita bread similarly.