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.

Youghurt maker Immersion cooker