Preheat oven to 350 degrees and line a large baking sheet with parchment paper.
Place butter into a small saucepan over medium heat. Swirl and heat until deep golden brown. Remove heat and allow to cool for 5 minutes.
Place browned butter and little bits from the pan into a stand mixer along with the brown and granulated sugar. Beat to combine then add egg and vanilla beating to combine. Add your flour, pudding mix, baking soda, corn starch, salt and 1.5 cups of dark chocolate chips. Mix on low until just combined.
Place the remaining ½ cup of chocolate chips and ½ cup of mini chocolate chip on a plate.
Using a 4oz ice cream scoop or your ½ cup dry measuring cup, scoop out a ½ cup of cookie dough.
Grab your cookie dough ball and press it into the plate filled with chocolate chips. Be sure to press all those chocolate chips into the top and sides of the cookie.
Be sure not to press any chips onto the bottom of the cookie.
Sprinkle about 1 teaspoon of crystal sugar over each cookie.
Place the cookies in the freezer for 15 minutes then bake for 13 minutes