Step 1

Preheat oven to 375°F. Line cookie sheets with silicone baking mats or parchment paper.

Step 2

Place flour in a medium size bowl. Add cornstarch, baking soda, and salt. Whisk to combine then set aside.

Step 3

Stir melted butter with granulated sugar and brown sugar until smooth.

Step 4

Add egg yolk, milk, and vanilla extract. Stir until smooth.

Step 5

Stir dry ingredients into wet ingredients. Stir in chocolate chips.

Step 6

Scoop 1 tablespoon sized cookie dough balls onto prepared cookie sheets, 3 inches apart.

Step 7

Bake for 16-20 minutes or until they’re a rich golden brown all over the top and not glossy.

Step 8

Let cool at least 10 minutes before removing from the cookie sheet. Cookies will get crunchy as they cool.