Cream butter

Add both brown and granulated sugar, and mix well

Incorporate vanilla and eggs into butter/sugar mixture.

In a separate bowl mix the flour, baking soda, and salt.

Slowly add the flour mixture until it is fully incorporated into the butter mixture.

Once the flour has been mixed in add the cocoa powder. You might be able to add it with the dry ingredients. I added it to add a little more color and to add a roast/bitterness to the cookies.

Mix in the chocolate chips.

Bake at 375 for around 8 min. Check in on the cookies at about 6-7 minutes.