Step 1

Preheat oven to 375 degrees F

Step 2

In a small bowl, combine all-purpose flour, baking soda, baking powder and sea salt. Set aside.

Step 3

In a medium bowl with a handheld mixer, beat together butter, granulated sugar and brown sugar until combined.

Step 4

Add vanilla and egg yolk and beat until light and fluffy.

Step 5

Add dry ingredients and beat well. Dough should easily clump together.

Step 6

Stir in chocolate chips by hand.

Step 7

Use a 1 ½ to 2 TBS cookie scoop to portion dough, then roll it into balls and place evenly spaced on the prepared baking sheet.

Step 8

Bake in the preheated oven for 8-9 minutes or until set around the edges and just barely starting to turn light brown top. Do not overbake

Step 9

Let cool on the pan for 10 minutes before removing to a wire rack to cool completely.