Oatmeal Scotchies

Name: Oatmeal Scotchies
Ingredients: 1 cup plus 2 tablespoons old-fashioned oats; 1 cup (8 ounces) unsalted butter, at room temperature; 1/2 cup cane sugar; 1/2 cup packed dark brown sugar; 1/2 cup packed light brown sugar; 1 extra-large egg, at room temperature; 1 teaspoon vanilla extract; 1/2 cup cake flour; 1/2 cup all-purpose flour; 1 1/2 teaspoons baking soda; 1 teaspoon kosher salt; 1 teaspoon sea salt flakes; 1 cup butterscotch chips