One is eaten in western Guangdong. The egg fruit is duck-egg-shaped, about the size of a duck egg, and it is egg-yellow when cooked. You should choose something that can be squeezed a little bit, peel off the skin and eat the yellow meat inside. The meat is very delicate and tastes like egg yolk and chestnuts. The nucleus is too big to eat.
The other is eaten in Huizhou, also called passion fruit and passion fruit. It's shaped like table tennis. It's pale yellow when cooked and smells a bit like guava. Thick skin, empty inside (a bit like water grapes), there is a capsule inside, wrapped in pulp. Just eat the pulp (a little seed, edible), a lot of juice, sour and sweet, just like drinking orange juice, which tastes very special. I think some people simply open a hole to squeeze the juice out, which is simple.
Overall, it's cool. I think that core should be cooked like the core of jackfruit, and it feels similar to chestnuts.