In your mixing bowl, you're going to add the softened butter and the white and brown sugars. Mix it until it is light and fluffy.

Once that is done, add in the vanilla extract and the eggs and continue mixing. After thoroughly mixing, set the bowl aside.

3. In another bowl, mix the salt and all-purpose flour.

4. While in another small bowl, mix in the baking soda into the water and pour that into the wet ingredients and mix.

5. Add the wet and dry ingredients and mix well. After mixing, add in the mini chocolate chips to it and mix again.

5. To make the Nutella stuffed cookie, get a cookie dough and place the Nutella in the center.

6. After that, get another cookie dough and place it on top of the first cookie dough.

7. Seal it carefully by pinching the sides of the cookie so the Nutella won't ooze out while baking.