In a medium bowl, whisk together the flour, salt, cornstarch, and baking soda. Set aside.
In a separate bowl, use an electric mixer to combine the sugars and butter; beat until combined. Mix in the eggs, vanilla, and Baileys.
Add in the dry ingredients, and mix until fully incorporated. Stir in the chocolate chips.
Cover the bowl with plastic wrap, and refrigerate for at least 1 hour.
Preheat the oven to 350 degrees, and line baking sheets with parchment paper or silpat mats.
Use a cookie scoop to scoop the dough onto the prepared baking sheets.
Bake for 12 to 14 minutes or until golden brown. Remove and allow to cool for about 10 minutes. Move the cookies to a cooling rack to cool completely. Store the cooled cookies in a sealed container at room temperature for up to one week, or store in the freezer for up to 3 months.