Wing Wah, a noted pastry shop chain in Hong Kong, develops healthier moon cake fillings. [File photo]

With a history of more than 60 years, Wing Wah, a noted pastry shop chain in Hong Kong, joined the ranks of innovation this year with improved mooncake fillings.

In a traditional Hong Kong mooncake, the filling is made with a whole egg yolk, lotus seed paste and granulated sugar. However, young people complain that it is too greasy. So Wing Wah replaced granulated sugar with maltitol, and mixed mixed egg yolk with lotus seed paste this year, to keep it tasty but with fewer calories.