Cornflake cookies are a delightful combination of chewy and crunchy, featuring the rich flavors of butter, caramelized brown sugar, and the hearty texture of oats and cornflakes. This easy-to-make recipe is perfect for holiday baking, cookie exchanges, or a sweet treat any time of year.
Preheat the oven to 350 degrees. Line two baking sheets with parchment paper and set aside.
In a medium bowl, whisk the flour, baking powder, baking soda and salt together. Then set aside the dry ingredients.
In a large bowl, cream the butter, granulated white sugar, and brown sugar together with an electric mixer on high speed until light and fluffy, 2-3 minutes.
Add in the egg yolks and vanilla extract and mix on medium speed until pale in color and fluffy, 1-2 minutes. Scrape the sides of the bowl as necessary.
Add the dry ingredients to the wet ingredients and mix on low speed just until combined.
Mix the oats just until combined.
With a rubber spatula, mix in cornflakes into the dough.
Scoop the dough with a large, 2 tablespoon capacity cookie scoop. Arrange the cookie dough balls 2 inches apart on a prepared baking sheet. Bake the cookies for 10-12 minutes. You just want to middle of the cookie to not look wet.
After baking, let the cookies cool on the cookie sheet for five minutes, then transfer them to a wire rack to completely cool. Makes 22 cookies.