Keep stuff off the counter. Counter surfing is extremely self-rewarding, and it sounds like she's already developed quite a habit of it. So keep your counters completely clean, or even block her access to the kitchen with baby gates if you have to. You can also train her to go to a mat when you're in the kitchen, and reward her heavily for being there. Basically, teach her that there is nothing good for her on the counter, but she can be rewarded for keeping her paws on the ground.