What meat is traditionally in the Indonesian variation of Shumai?
Siomay: Siomay (also Somay), is an Indonesian steamed fish dumpling with vegetables served in peanut sauce. Siomay:  It is traditionally made from "tenggiri" (wahoo) fish meat. Shumai:  Along with Chinese diaspora, variation of Shaomai also appears in Japan (焼売, "Shumai") and Southeast Asia ("Siomay").
i don't know