pretty confusing gameplay, I wasnt sure at first what i was doing wrong.
for those also confused, i *think* you first have to test potions on yourself to figure out what the potion does. you test it on yourself by stirring until you fail the potion, and youll either get a bloated belly, a super bloated belly, or bloated breasts. you keep in mind whatever ingredients you used during the fail, and i *think* you can use these details to figure out which ingredients make which potion. and the customers seem to obtusely ask for a Strength, Healing, or Stamina potion in their textboxes
edit: ok i beat it and i won working under this logic. other tips tho: the correlating effects are always the same (Ex: big bloat = stamina, reg bloat = healing, and breast bloat = strength). the combination of ingredients may result in different effects between runs, as the game does explain (Ex: mushroom + feather = stamina in one run, but it may = health in another). once you test two potion combos, you never have to test potions again in the run because you know the results of two combos and you can process of elimination the third combo. also potion combo results are consistent between ingame days.