I tested five common egg replacement ingredients (mashed banana, greek yogurt, applesauce, aquafaba, and a tapioca flour and baking powder mixture) to see which one made the best cake.

Tapioca Cake; Mix all the ingredients together and bake in oven at 180°C for one to one and a half hours. Kuih Lapis; Mix Part A ingredients together, using heat to dissolve the sugar.

But if any chef has handed Portland a library card, it’s Feny, the co-owner of Wajan and Pasar who goes, as is common in Indonesia, by one name.

The tapioca does a better job of helping to thicken the frosting. And, if you prefer a tangier frosting, start by adding just 1⅓ cups powdered sugar, then taste the mixture before adding more.