Vietnamese Coffee Viennetta

Growing up, I never knew Viennettas were popular in the States, since the only time I ever enjoyed one was when my family and I traveled to Hong Kong to visit my grandparents. My grandmother always bought one as a special treat for me and my sister. Presumably due to the British influence in Hong Kong, Viennetta ice cream cakes were a prized possession to be shared with family. I will forever associate this magical frozen treat with memories of my grandmother.

Here, I combine a Vien