What are the recommended boiler or cooker which I can use to cook porridge at work and bring home in time to feed baby? TIA

Hi, I used to boil porridge in slow cooker and baby comes home ready to eat. But after a while, it became very tiring. So, in the morning, I just got up a little earlier and put everything to partial boil before pouring them into portable shuttle chef for it to "cook" by itself. At the end of the day, it remained warm and the porridge is just nice for my baby.