Preheat oven to 350 degrees.
In a mixing bowl, add flour, baking soda & salt. Set aside.
In another large mixing bowl combine brown sugar, sugar & butter. Crack an egg & add vanilla & mix well.
Slowly add flour mixture. Stir in chocolate chips.
Make into tablespoon sized balls and place on a nonstick pan or a parchment paper lined pan.
Use a spoon to slightly flatten.Bake for 10-12 minutes.
Remove from oven. Place on cooling rack.
Once cookies have cooled, spread frosting on the inside of every other cookie.
Place a cookie on top to make a cookie sandwich.Sprinkle the edges.Serve & enjoy.