Preheat the oven to 350℉/174℉ and line the baking trays with parchment paper and set aside.
Brown the butter: Melt the butter in a medium sized pan over medium-high heat. Once it melts, continue mixing the butter to prevent burning. The butter will go from melted, to sizzling, to foamy, to golden brown quickly, and you’ll know it’s almost done when the aroma of browned butter arrives. The whole process should take about 5 minutes! Once golden, remove from heat and transfer to a glass bowl to cool as you measure out the rest of your ingredients. (Cool at least 15 minutes).
3/4 cups + 1 tbsp unsalted butter
In a bowl, add the flour, baking soda, cinnamon, and salt. Stir to combine and set aside.
1/4 tsp salt, 1 1/3 cups all-purpose flour, 1/4 tsp cinnamon, 1 tsp baking soda
In a large bowl, add the brown butter, white sugar, and brown sugar. Whisk for 2-3 minutes until smooth.
1/2 cup dark brown sugar, 1/3 cup white sugar, 3/4 cups + 1 tbsp unsalted butter
Add the egg, yolk, and vanilla. Continue whisking until smooth.
1 large egg, 1 large egg yolk, 1 tbsp vanilla
Add the dry ingredients in. With a spatula, gently mix to form a soft cookie dough.
Add in the cooled caramelized pecans and chocolate chips. Mix together a few times until combined, do not over-mix.
1/2 cups semi-sweet chocolate chips
Scoop the cookie dough 6 at a time on the baking tray. Add extra pecans and chocolate chips on top if desired. Bake for 13-15 minutes or until the edges are golden brown and the middles are still slightly puffy.
Allow to cool, and enjoy! These cookies are so good!