Yummy Puri

Menu said 'Puri Chola".
"Yummy puri", said some.
Make your own Puri and wonder
But why my Puri puffed up?
Why my this Puri didn't puffed up?
Why some puffed up, some don't?
Why some are round some not?
Hot oil or warm oil? 
Both sides or one side?
Crispy or soft?
Ah! So much to wonder 
So much to experience

Just one announcements "make your Puri and wonder"?