Preheat the oven to 375 degrees Fahrenheit and line two baking sheets with parchment paper.

Mix together the chocolate chip cookie mix, vegetable oil, milk and the egg in a large mixing bowl until a soft dough forms.

It may seem slightly dry but will come together once well mixed. Use a spatula to scrape down the sides and bottom of the bowl and use your hands if needed to be sure everything is well combined. If it is too dry you can add extra milk, 1 teaspoon at a time.

Fold in the chopped Snickers and then use a 1.5 Tablespoon cookie scoop to scoop out the cookies.

Place the cookie dough on the baking sheet, about 1 inch apart from each other and the edges.

Bake the cookies for 8-12 minutes or until golden brown and set on the edges.

Allow the cookies to cool for 5 minutes before removing from the baking sheet and placing on a cooling rack or serving warm.