Step 1

Line two baking sheets with wax paper or silicone baking mats and set aside.

Step 2

In a large saucepan, combine the sugar, corn syrup, and peanut butter over medium heat. Stir often until the mixture comes to a boil then remove from heat. Stir in vanilla and cornflakes until evenly coated.

Step 3

Immediately drop cookies onto the prepared baking sheets using a cookie scoop or large spoon.

Step 4

Allow cookies to set at room temperature (30-60 mins) before serving or storing.