I really enjoy cooking as a hobby.
Cooking is a hobby of mine too its and art and craft of preparing food to eat
I agree! It's also an important life skill that can help someone finally by not having to eat out as often.
I find it amazing how much cooking techniques and methods vary around the world there is open fire, electric, outdoor ovens etc
I am definitely interested in the science of cooking. It's always interesting how people find that things taste different if they're cooked over an actual flame as opposed to an electric stove or oven.
Using fire or heat to prepare food is something only humans do
True, but I've read about studies where I believe monkeys, if given the chance, prefer cooked foods. 
archaeological evidence shows people were cooking one million years ago!
Well, can't blame them, things taste better cooked! It always probably helped with survival by killing bacteria present in the ingredients.
Cooking
Cooking or cookery is the art, technology, science and craft of preparing food for consumption. Cooking techniques and ingredients vary widely across the world, from grilling food over an open fire to using electric stoves, to baking in various types of ovens, reflecting unique environmental, economic, and cultural traditions and trends. The ways or types of cooking also depend on the skill and type of training an individual cook has. Cooking is done both by people in their own dwellings and by professional cooks and chefs in restaurants
of the imperial family used simple clothing and had uncomplicated food to eat.
Empress Marie Feodorovna knew how to cook and at Langinkoski she had an opportunity of devoting herself to that hobby. It is known also that she did not like washing the dishes.
Some years ago a photograph taken at Langinkoski was found in the Russian State Archives in St. Petersburg. The picture shows empress Marie Feodorovna sitting on the kitchen porch busying herself with cooking. The young officer to the right is Grand Duke George, her second youngest son