Nice!
Here are some notes:
The object that can be picked up should also have an outline.
Maybe there should be a reward for discovering all recipes (it would suddenly make the game more engaging). For example, if the player makes all the potions and feeds them to the priest in the proper order, something horrible—I mean, very funny—should happen to the poor guy after the last one. This would reward the player for completing the set.
Anyway, thanks and good luck!