01 -
Preheat the oven to 350ºF. Line 3 baking sheets with parchment paper and set aside.
02 -
In a small bowl, whisk the flour, baking powder, baking soda, and salt together until combined.
03 -
Using a stand mixer fitted with the paddle attachment or a handheld electric mixer, beat the butter, granulated sugar, and brown sugar together until light and fluffy, about 1 minute.
04 -
Beat in the egg followed by the vanilla.
05 -
Add the flour mixture all at once and mix on low speed just until no streaks of dry flour are visible.
06 -
Add the oats and chocolate chips. Mix on low speed just until incorporated.
07 -
Roll the dough into 2-tablespoon size balls and place them 3 inches apart on the prepared baking sheets. Use your fingertips to gently flatten each dough ball to about 3/4 inch thick.
08 -
Sprinkle the tops with sea salt and bake for 11-13 minutes until the edges are golden and crisp.
09 -
Cool on the pan for 5 minutes then transfer to a wire rack to cool completely.