I told her if she wants to cook I will come up and let her do it while I am there. She is very mad at me but I in the past have had to clean up after her so when dr. said she should not is when I decided to turn it off. I have told her I will be there for her to cook but she is mad I will not let her do it alone.
How do I handle this situation. She lives alone.
It is OK for you to step in and insist on safety measures. This is a reversal of the usual parent/child rules, and it is often hard on both parties.
"Mom, when did you start cooking? How did you learn? What meal were you most proud of? Did you ever have a cooking disaster?" Engage her in conversation about this important part of her life. Acknowledge what a great cook she has been, how much you've learned from her, talk about her reputation within the family for her special dishes. Now that she is about ready to retire from this activity you'd like to do some cooking with her, and get some pointers on how she does things.
You might call her once in a while and ask how she used to make something, or whether it was dill or thyme she used in her squash soup -- acknowledge that was skilled and has something to pass on to you.
It is OK for her to be mad. It is OK for you to be firm. It is also OK to interact about the general topic of cooking, without arguing about her "retirement."
From your post I understand the Dr. is aware of hazard or danger. This raises a serious red flag in my own experience and with knowledge of others who did not see this type of warning as a need for 24/7 care. It is usually too late before a person careing for a parent, can understand what you are really dealing with. (I and friends have learned the hard way as well) I use a 2year old scenerio to get the point across. A 2 year old wants to be independent but, would you let a 2 yr old cook, drive a car, make finacial decisions, etc. just because they want to. In fact a 2 year old might remember the danger of walking away from a pan on the stove where as a elder person with declined health may not. The way you can handle a situation like this to remove hazards and don't worry about approval. Microwaves can be worse than a stove, if too many zero's you've got a fire!!! 2:00 can be 20:00 or 200:00. My friend's Mom blew up 3 micro's until she got the picture, No Micro!!! If she wants to cook let her cook under supervision only. The circut breaker thing is a great idea. This still worries me because if Mom remembers this as a solution it may cause a different type of danger. Put it this way I had my Mom at my home she never once tried to cook never in a million years would I have thought she would ever go near the stove. One morning I entered the kitchen all 4 burners on high flame... nothing cooking, I asked Mom why are the burners on? she said.. "I didn't do that,... Oh yes I did" she said "I wanted a cup of tea, I didn't want to bother you." Thank's to my very smart cat (believe it or not) he'd wake me if Mom was up to something, if I were asleep. She took a stroll one night 12:30 AM, I slept in same bed that night, because i knew she was on a mission. She waited till I was out cold climbed over me, to get out of bed without waking me, (got thru the barricade at door) walked across the road into a lake and neighbors dog heard her, Thanks to the dog woke his owner he called the police and she smiled at me when I saw she was wet and said "I Was In a BIG PUDDLE!!!' She had no idea she was in the lake wet up to her chest and clueless. I am not saying your Mom is as ambitious as mine. It is very important to understand that whatever it takes to keep a safe enviroment is important. You don't need permission to do what is right in this matter. If you focus on what's best for your Mom, I assure you a path will be there to help and guide you. May sound crazy but that's the key.
I feel she should be in assisted living or have someone more during the day but other family member say to let her be where she is happiest. So all I can do is try to keep an eye on her. This becomes very stressful at times but I can only do what I feel is best.
I know she shoulod not be smoking but dam she is 80 and I just can't say know but I keep telling her if she was to stop she could enjoy more of her life.
This is the path she has chosen and it is her life so all I can do is keep her as comfortable and safe as possable.