Preheat oven to 350℉.
Line cookie sheets with parchment paper.
In a stand mixer or large bowl, cream butter with sugars until smooth and creamy, about 3-4 minutes.
Beat in egg, vanilla and milk.
Stir in flour and baking soda.
Fold in Skor pieces and chocolate chips.
Using a scoop or tablespoon, scoop the cookie dough onto the parchment lined cookie sheets, about 2 inches apart.
Bake in preheated oven for 10-12 minutes or until edge are crisp and browned, but centres are still slightly wet.
Cool on cookie sheets for 2 minutes before transferring to cooling racks to cool completely.
Store in an air-tight container for up to 3 days at room temperature.