Preheat the oven to 350°F/180°C. Line a baking tray with parchment paper and set aside.
Place parchment paper on a cookie sheet. Then, scoop 6 tablespoon dollops of Nutella on it. Place them in the freezer while you make your dough.
1/2 cup Nutella
Brown the butter: Melt the butter in a medium sized pan over medium heat. Once it melts, it will crackle, then become foamy – continue mixing the butter while this happens to prevent burning. The butter will go from melted 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. Let the butter cool for 30 minutes while you prep on the rest of the recipe.
1/2 cup butter
Once the brown butter is slightly cooled, pour into a large mixing bowl. Add white sugar and dark brown sugar and whisk until well combined.
1/4 cup white sugar, 1/2 cup dark brown sugar
Add in the egg and vanilla and continue whisking.
1 egg, 1 tbsp vanilla
Toss in the flour, rolled oats, baking soda, and salt. Using a spatula now, gently fold until a soft dough forms.
3/4 cups flour, 1 cup + 2 tbsp rolled oats, 1/2 tsp baking soda, 1/4 tsp salt
Add in chocolate chips and mix in a few times. Don't overmix!
1/2 cup semi-sweet chocolate chips
Scoop 2 tbsp worth of dough using a cookie scooper and add one frozen dollop of Nutella inside (See photos above for reference).
Fold the cookie dough around the Nutella and make sure it’s completely concealed. Place on baking tray. Bake 6 cookies at a time.
Bake for 13-15 minutes or until the edges are golden brown and the center looks slightly under baked. It'll continue to bake on the tray/as it cools.
Remove from the oven. Let the cookies cool on the baking sheet for 5 minutes. When they are set up, transfer to a cooling rack to cool completely.
Enjoy!