A machine for making ready-to-eat food from basic ingredients.
For example:
Input: pasta, tomato paste, etc.
Press button
Output: Spaghetti bolognese
For example:
Input: potatoes
Press button
Output: pommes frites (French fries)
Thingy for mounting on a pot, that will stir the sauce. Speed should be adjustable, the stirrer should be detachable.
Immersion boiler, Arduino, temperature sensor.