Regarding the fat, my comment was refferincing more on the issue of texture, or more exactly how soft, wobbly fat was probably not common as is necesary to prepare it for storage very fast to not spoil and that the main source of animal fat was pig as per what I observed, the simillaraty of...
Swets are indeed a rare in this world, sugar is imported and honey is expensive.
The pudding texture should be be somewhat rare whit closest thing to it beeing something like youghurt which I dont remember is is present in this world and whould be anyway somewhat rare to use by common folk...
I will give it, is a good comedy and a warm manga, but the fact nobody never tried to improve the food or discovered simple things like cheese, is so offputing. Maybe if the MC did not succed from first try and did some more complicated and not so obvious thing will be a improvment. 6.5/10