Get wax paper ready . I usually spray a little cooking spray to prevent the cookies from sticking . Pour the cornflakes into a large bowl and set aside.
In a glass mixing bowl mix together the corn syrup , sugar and peanut butter. Microwave for a total of 3 minutes , stopping to stir after every 30-45 seconds . When the sugar has dissolved . If the sugar isn't dissolved continue cooking for 30 seconds at a time.
Remove the peanut butter mixture from the microwave and stir in the vanilla and salt . The salt is optional , I like the sweet and salty combination it provides.
Pour the peanut butter mixture over the cornflakes , stir to coat all of the cornflakes.
Working quickly scoop out the cornflakes by the spoonful and drop them onto the wax paper. Make the mounds as large as you would like the cookies. Let them cool completely and set up