Dim sum — 'touch the heart' — is more than brunch. It is a social ritual born in Guangzhou teahouses, perfected in Hong Kong banquet halls, and now enjoyed across the globe in bamboo steamers.

Dim sum — 'touch the heart' — is more than brunch. It is a social ritual born in Guangzhou teahouses, perfected in Hong Kong banquet halls, and now enjoyed across the globe in bamboo steamers.