A stove.
fire
The pressure cooker
A electronic rice cooker.
horace de saussure invented the first solar cooker bout the year 1797
a rice cooker ;)
bonace
focal point
It is called the trade name of AGA
From the research I have gathered a man by the name of Denis Papie created the first electric cooker. He was french and was said to create it in the late 1800's.
rice cooker
Horace de Saussure