Take all purpose flour in a bowl, add vinegar,oil,salt add warm water and knead a stiff dough
Brush some oil on top, cover it and keep aside it for atleast 10 minutes
After 10 min take dough knead once again and divide into 8 to 9 balls
Roll the balls into rotis, dust some flour over each roti,pile them on top of one another
Roll into a thin as you can but not break, large roti
Cut the sides to make square sheets
Grease 1 sheet with butter place filling of mixed nuts,maava and chocolate
Roll, brush some melted butter
Repeat the same steps, roll till the end
Place all stuffed rolls in greased tray, cut in the centre
Brush with butter, bake in a preheated oven at 180 degrees for 30 to 35 minutes
For Caramel syrup, Boil 1 cup sugar with 1/4 cup water, caramel syrup is ready
Drizzle Caramel Syrup over baked rolls, sprinkle chopped pistachio over it and serve