One suggestion that might already have been said - Keep the "research new ingredient" option at the top of the list, and only scrolling the actual ingredient list. This way I can see what my next ingredient research goal is at all times.
Has anyone else gotten this? I came back, opened my save, and now everytime I finish a level, instead of the oass or fail screen, it gives me the pause menu. Clicking resume just makes the game resume with nothing going on. Which makes me sad, as I love blasting pigs in planes.