Preheat the oven to 350° F.
In the bowl of a stand mixer, cream together the butter and brown sugar until completely combined.
Add in the eggs and milk, mixing well.
Add the whole wheat flour, rolled oats, salt, baking powder and soda. Mix until a wet dough forms.
Lastly, mix in the butterscotch chips.
Portion out the dough to your desired size, for small cookies, use a #40 scoop. For larger cookies, use a #24 scoop.
Either leave the cookies scooped as is or break each portion in half and press the halves together leaving the rough end visible on the top of the cookie dough portion for added texture, if desired.
Arrange on a parchment of silicone lined cookie sheet and bake at 350° F. For the small cookies, 8-10 minutes. For the larger cookies, 11-14 minutes.
The cookies will start to brown but may still look a little wet and glossy, that is okay. Allow the cookies to cool on the pan for 15 minutes.
Enjoy!