Preheat the oven to 325°F. Melt the butter in a medium size saucepan. Add the brown sugar and stir or whisk together until smooth and creamy. Remove from the heat and chill for 10 minutes in the refrigerator. Whisk together the dry ingredients while the mixture is chilling.
Remove from the refrigerator and stir in the eggs and vanilla, stirring or whisking until smooth. Slowly add the dry ingredients in 3-4 different batches, stirring to fully combine each time. Mix in the chocolate chips and then scoop or roll into 1" balls. Place on a silpat or parchment lined baking tray and press down on each cookie with the back of a measuring cup.
The cookies will not spread out while baking, so don't forget to press them down or you'll wind up with round puffy cookies. Press together and smooth the edges of the cookies as needed with your fingers. Bake for 10-12 minutes, until the cookies no longer look wet. Remove from the oven and let cool on the baking sheet for 1-2 minutes before transferring to a wire rack to finish cooling. Store in an airtight container. Enjoy!