Combine Chocolate Chip Soft Bake mixture with the baking powder. Slowly mix in three tablespoons of water.
On a baking sheet lined with parchment paper, form the dough into two even cookie-shaped pieces.
Bake for approximately 12 minutes.
When done, allow cookies to cool for about 30-60 minutes.
Flip cookies over to the smooth bottom side. Drop a tablespoon of whipped topping onto one of the cookies. Place the other cookie on top and lightly press together to spread the cool whip. Place in freezer, if desired.