Preheat the oven to 350 degrees. Line a cookie sheet with parchment paper.
Put the softened butter into a mixing bowl. Using a hand mixer, beat that butter until it’s creamy like frosting.
Add the egg, vanilla, sugars, and molasses. Stir together with the hand mixer or by hand.
Using a wooden spoon, stir in flour, salt, baking soda, and baking powder until you have a uniform dough.
Stir in the oats until fully mixed.
Stir in the chips until fully mixed.
Stir in the corn flakes until fully mixed.
Using your hands, grab a hunk of dough and form it into a ball a little bit bigger than a golf ball. Place the dough ball on the cookie sheet. Repeat until no more dough.
Bake the cookies in the oven for 10–15 minutes. Just stand by the oven and stare at that until you see the edges go brown and the middle of each cookie begin to set.
Take the cookies out to cool.
