In a large mixing bowl, cream together the butter and sugar using a mixer. Mix until smooth and creamy.

Add milk, egg, cinnamon, and vanilla extract, to bowl and continue mixing until everything is incorporated.

In a separate bowl, combine the flour, baking powder, baking soda, and the packets of instant oatmeal.

Gradually add the dry ingredients to the wet ingredients and mix until dough forms.

Lastly, fold in the chocolate chips and chopped walnuts until they are evenly distributed.

Using a cookie scoop or tablespoon, drop rounds of cookie dough onto a parchment lined baking sheet about two inches apart.

Bake for 10 minutes or until the cookies turn a light, golden brown.

Remove the cookies from the oven and transfer them to a wire rack to cool.