Preheat your oven to 350°F (175°C). Line three baking sheets with parchment paper and set aside.

In a small bowl, sift together the all-purpose flour and baking soda. Set this dry mixture aside.

In a large mixing bowl, combine the softened butter, granulated sugar, and packed light brown sugar. Beat on medium speed with an electric mixer until the mixture is light and fluffy.

Add the salt, pure vanilla extract, and large eggs to the butter mixture. Continue to beat on low speed until all ingredients are thoroughly combined.

Gradually add the sifted flour mixture to the wet ingredients, mixing until just combined. Be careful not to overmix.

Fold in the semisweet chocolate chips until evenly distributed throughout the dough.

Drop rounded tablespoons of cookie dough onto the prepared baking sheets, ensuring they are spaced about 2 inches apart.

Bake for 8 to 10 minutes, or until the edges of the cookies are golden brown. The centers may still appear slightly soft.

Remove the baking sheets from the oven and let the cookies cool on the sheets for 2 minutes before transferring them to a wire rack to cool completely. Ensure cookies are fully cooled before filling.

While the cookies are cooling, prepare the Nutella Cream Cheese Filling.

In a medium-sized mixing bowl, combine the softened cream cheese and powdered sugar. Beat with an electric mixer on medium speed until the mixture is smooth and creamy.

Add the melted white chocolate chips and Nutella to the cream cheese mixture. Continue to mix until all ingredients are thoroughly combined and the filling is uniform.

For best results, let the filling sit in the refrigerator for 10 minutes to allow it to firm up slightly before assembling the sandwiches.

Once the cookies are completely cool, spread a generous amount of the Nutella Cream Cheese Filling onto the flat side of half of the cookies.

Gently place the remaining cookies on top of the filled halves, pressing down slightly to create a sandwich. Repeat with all cookies.

Refrigerate the assembled cookie sandwiches for at least 20 minutes to allow the filling to stiffen slightly, which makes them easier to handle and eat.

Serve the Nutella cookie sandwiches at room temperature for the best texture and flavor. Store any leftovers in an airtight container in the refrigerator.