Why these portion sizes
Biryani is denser and more filling than people expect. The single biggest mistake first-time party orderers make is overordering — buying 1.5 pounds per head because the menu lists it by the pound. Three-quarters of a pound per adult is the calibrated number from twelve months of Chantilly catering orders. It leaves a small buffer for second helpings without producing a fridge of leftovers. For kids under 12, half a pound is the realistic number — even biryani-loving kids rarely finish more.