Hunters probably use Monster blood for baking and cooking because it’s easier to get their hands on blood than eggs
Like. Herding Gargwa or other small monsters to get eggs from is hard, especially in the new world where there’s a new catastrophy every other week, but most Hunters probably don’t want to give up entirely on sweets either and harassing the Meowscular chef to offer pastries at the canteen is probably viewed as a death-wish, so... they just have to improvise. (especially the Handler. I mean- girl’s just chucking raw sweet potatoes or whatever into the steamworks, she’d cook brownies on a candle if needed)
I’m just imaging a bunch of younger Hunters sitting together in their shared quarters late at night, using some old armor-pieces to make brownie batter in and using idk, fire-elemental weapons to cook their brownies over. And ofc the Commander catches wind of it quite quickly (probably cause they almost burned down their quarters or whatver) and in a weak effort to not get their asses beat they offer him some-
Commander: you know, all things considered, these are actually quite decent. I can accept you hiding dry ingredients under your beds, but where did you put the eggs?
Hunter 1: Oh we didn’t use any eggs
Commander: what did you use then
Hunter 2: *kicking empty blood vials under the bed*
Commander: WHAT DID YOU PUT IN THE BROWNIES-