Line a large baking sheet with parchment paper and set to the side.
Pour the cornflake cereal in a large bowl and set to the side.
In a medium saucepan pour in the corn syrup and the maple syrup. Warm on medium low heat, stirring occasionally until slightly bubbly, about 3-4 minutes.
Turn off the heat and mix in the sugar and vanilla extract and stir well.
Using a rubber spatula, mix in the peanut butter. The mixture will be very sticky.
Pour the mixture over the reserved cornflakes and mix well.
Working quickly, using a 1 ½ Tablespoon cookie scoop or a Tablespoon, drop cookies onto your prepared baking sheet.
Let cookies set for 10-15 minutes and serve.