First, melt the butter then let it cool completely before mixing in both the white and brown sugar with the vanilla extract. Cream with a hand mixer for about 3 minutes until mixture becomes light and airy.
Next, add in your room temperature eggs. Beat on medium-low speed until smooth and well combined.
Add in the flour, pinch of salt, cinnamon, baking soda, baking powder, and oats. Combine on low speed until the dry ingredients are incorporated into the cookie dough.
Lastly, fold in the chocolate chips and pecans by hand or with a spatula if the mixture becomes too thick for your mixer. Do this until just well combined.
Using a large cookie scoop or a tablespoon, shape the cookies into a ball and place on a lined baking sheet with parchment paper. For larger cookies, press the palm of your hand on each ball until they are evenly flattened.
Bake at 375 degrees Fahrenheit for 8-10 minutes or until edges are set. (For extra soft cookies, take out at 8-9 minute mark!) Let cool for 5 minutes before transferring to a wire rack to cool completely. Enjoy warm!