Estimating Quantities of Hors d’Oeuvres
If your party lasts longer than 90 minutes and is intended to replace dinner, the pace of eating will speed up again after 2 hours. In this case, it is important to have enough hors doeuvres ready and waiting in the kitchen to replenish empty platters.
For an average-size party, with 8 to 20 guests, plan on 2 hot and 2 cold passed items and 1 or 2 buffet itemsa total of 5 or 6 selections. If you will be hosting 30 to 40 guests, add 1 more of each hot and cold item plus 1 more buffet selection.