In this chapter, Tommo explains that he's making a cake for his girlfriend's birthday. He's obsessed with making cakes with "okara" , which is a type of coconut that's a fermented fish-like substance. He makes a cake with 40 grams of this coconut and bakes it for thirty minutes. The cake turns out to be the best birthday cake ever, and Tommo is so happy that he wants to make it every week. He tells us that he made the cake with banana instead of coconut because the coconut "matches well with banana" and the cake "cuts calories by 70 percent" .