01 -
Preheat oven to 350°F (175°C). Prepare a large baking sheet using a non-stick method of preference. Set aside.
02 -
In a large mixing bowl, combine melted or softened butter with light brown sugar and white granulated sugar. Use the whisk attachment on an electric mixer and beat on medium speed for 5 minutes. Add the egg and vanilla, then continue mixing until fluffy.
03 -
In a separate medium-sized bowl, combine the flour, baking soda, and salt.
04 -
Gradually incorporate the dry ingredients into the wet mixture using the spatula attachment of the stand mixer. Mix until fully combined. Add 1 cup of chocolate chips, folding them in gently by hand with a spatula.
05 -
Portion dough into approximately 3-tbsp portions using a large cookie scoop. Arrange the dough pieces evenly on the prepared baking sheet. Press remaining 1/4 cup of chocolate chips into the tops of the dough portions.
06 -
Bake in the preheated oven for 12 minutes or until the cookie bottoms start to brown. Monitor baking time carefully, as oven performance may vary. Allow cookies to cool completely on a wire cooling rack.
07 -
Add heavy cream, granulated sugar, and vanilla flavoring into a large mixing bowl. Using the whisk attachment of the stand mixer, mix on medium-high speed for 10 minutes until peaks form.
08 -
Take one cooled chocolate chip cookie and spread a desired amount of whipped cream onto the flat side. Place a second cookie on top to assemble the sandwich. Optionally, roll the edges of the sandwich in sprinkles.
09 -
Refrigerate the assembled cookie sandwiches for 2 hours, or freeze them for at least 2 hours before serving. Enjoy chilled or frozen.