Wuren moon cakes usually do not contain egg yolk. Wuren moon cake is a traditional Mid-Autumn Festival delicacy, which is made by mixing a variety of nuts, dried fruits and syrup. Common ingredients of Wuren moon cake include walnut kernel, peanut kernel, almond, lotus seed, jujube, melon seeds, etc., without egg yolk as filler.

Egg yolk moon cake is another very popular and traditional Mid-Autumn Festival food, with egg yolk as the main filler. Egg yolk moon cakes can be selected according to the quantity and flavor of egg yolk, such as traditional single egg yolk moon cakes, double egg yolk moon cakes, five-kernel egg yolk moon cakes and so on.

Therefore, if you want to try Wuren moon cake, it generally does not contain egg yolk, and egg yolk moon cake is another choice. The specific moon cake ingredients and tastes may be slightly different, depending on the region and personal preferences.