Here is the lady who developed these bars as a signature dessert for her catering company. I took several classes from her when I lived in Vancouver BC.
ht.com/food/639276/lazy-gourmet-shares-easy-nanaimo-bar-recipe-mothers-day
trying again:
https://www.straight.com/food/639276/lazy-gourmet-shares-easy-nanaimo-bar-recipe-mothers-day