The amount of hummus per person at a party depends on how many people you are expecting. If there are more than 10 guests, it's a good idea to plan for about 4 ounces of hummus per person. This will give each guest enough to enjoy but not so much that you run out quickly. You may want more if the party is filled with big hummus fans! For smaller gatherings, around 2-3 ounces per person should be plenty for everyone to have a taste. Keep in mind that if your party features multiple dips and appetizers, you can generally get away with providing less hummus than if it were the only dip served. Enjoy!