Preheat your oven to 350°F (175°C).
In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth.
Add the eggs, Baileys Irish Cream, and vanilla extract, mixing until well combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Fold in the chocolate chips.
Drop rounded tablespoons of dough onto a baking sheet lined with parchment paper.
Bake for 10-12 minutes or until the edges are golden brown.
Allow to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.