Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
In a large mixing bowl, combine the softened butter, brown sugar, and granulated sugar. Beat on medium speed until creamy and light, about 2-3 minutes.
Add the eggs one at a time, mixing until fully incorporated before adding the next. Then add the vanilla extract and mix until smooth.
In a separate bowl, whisk together the flour, baking soda, and fine salt. Gradually add this dry mixture to the butter and sugar mixture, mixing on low speed until just combined.
Gently fold in the mini chocolate chips with a spatula until evenly distributed.
Use a cookie scoop or tablespoon to create rounded balls of dough and drop them onto the prepared baking sheets, spacing them a few inches apart.
Bake for 8-10 minutes until the cookies have lightly golden edges and are soft in the center. Let them cool on the sheets for a few minutes before transferring to wire racks to cool completely.
Once cooled, take one cookie and place a scoop of ice cream on its flat side. Top with another cookie, flat side down, and gently press together.
For extra flavor, sprinkle a small pinch of sea salt flakes on the ice cream before placing the top cookie.
Arrange the assembled sandwiches on a tray and freeze for at least 30 minutes to firm up.
Notes
Serve on a colorful dessert plate with chocolate syrup for an appealing finish.