Rikki did the same to me when she first came to our house. I bought her a large play stand for the kitchen, and consistently put her on it and told her she has to stay there when I'm cooking, or I tell her to stay there and I'll be right there to get her as soon as I can. Then I would make sure I did go get her after a few minutes and talk to her, then I would put her down again and do what I needed to do, all the time talking to her and making her feel that she was very important! This worked very well pretty quickly.
I also have a basket with a handle that circles up from one side to the other on my counter, and I put her there so she can watch me cook. I also make a HUGE deal about the stove, and it being HOT & DANGER!! All key words I use with both my greys, they seem to understand and now stay away. B)
I'm sure others here have more advice.