First mix flour with salt and baking powder and sugar nicely
Now add butter at room temperature
Now mix eggs with sour cream and chocolate syrup
Now mix chocolate mixture with flour mixture slowly at little portions
Now preheat the pressure cooker without whistle and rubber so cooker could not block heat inside.just make hot it for steam
Now low the flame and put one small empty aluminum bowl inside
Now greece with butter one another bowl to put cake mixture inside
Now keep both bowls properly inside the cooker.first bowl open mouth downside and second bowl open mouth upside and put mixture inside slowly and close the cooker
Check every after 7 or 5 minutes
When just center portion seem little soft to ready turn off the gas and keep the cooker close for continuously five seven minutes
Your very fluffy chocolate syrup cake at home is ready without condensed milk or heavy cream or cream cheese