Preheat oven to 350 degrees F for shiny metal pans or 325 degrees F for non-stick or dark metal pans.
Use a small cookie scoop to portion about one tablespoon of cookie dough.
Roll it into a ball and place in one well of a mini muffin tin.
Repeat until you have 24 cookie dough ball.
Bake for 10-13 minutes or until cookie cups are baked through but not too brown.
Allow cookie cups to cool slightly.
Use a tart press or the back of a rounded measuring spoon and press a shallow well into each cookie cup.
Allow cookie to cool completely.
Fill each well with marshmallow fluff and add sprinkles!
Store any leftovers in an air tight container.