I had fun reading your story. At first, I thought it was sun-dried chicken in hot spices, after all, it was like that, initially. A traditional recipe for Jerk chicken in Jamaica, back when runaway slaves were afraid to build fires that could give away their location. The chicken was cured in salt and spices, in hot pepper without fire and smoke. I figured you found this recipe in Japan and I was worried about your kids, it's a bit of a dangerous recipe because they didn't use sodium salt back then. Basically, I think it was chicken ham lol. Yes, I looked closely, but, apart from green plants in pots, I did not see what would look like the flag of Jamaica) ... just kidding, the flag is on the second floor, some boxes were covered with it)