Begin by letting your vanilla ice cream sit at room temperature for about 10-15 minutes until it becomes soft and easy to scoop.
In a large mixing bowl, add the softened vanilla ice cream. Then, measure out about 1 teaspoon of mint extract and mix it into the ice cream.
Add a few drops of green food coloring to the ice cream mixture and stir until the color is evenly distributed.
Crush the Oreo cookies into chunky pieces and set aside.
Gently fold the crushed Oreo cookies into the minty ice cream mixture.
Scoop the McFlurry into bowls or cups. Top with whipped cream and a sprinkle of additional crushed Oreo cookies if desired.