Place 1/2 to 3/4 of the crushed Oreo cookies in the bottom of your sundae bowls. Set the rest of the crumbles aside.
Add 2 to 3 scoops of mint chocolate chip ice cream to each sundae bowl.
Add a drizzle of chocolate syrup to every sundae.
Crumble on the rest of the crushed Oreos.
Add a swirl of whipped cream on top.
Then sprinkle on the shaved chocolate.
If you want, you can add a cherry on top. Maraschino cherries straight from the jar work just fine.
Notes
*To crush the Oreo cookies, put all your Oreos in a plastic baggie, and seal it well without any air left in the bag. Then take a rolling pin and roll over the cookies, or beat the cookies with the rolling pin, 'til they're the consistency that you want.*To shave the chocolate, take a vegetable peeler and peel the chocolate bar, just like you would a carrot or a potato. You should get beautiful fine shavings or curls of chocolate, perfect for topping off and decorating your sundae.How can I make sundaes ahead of time so they're ready to go?If making these sundaes a day or two ahead of time, I'd recommend adding only the Oreos, ice cream, and chocolate syrup to your sundae bowls. Then cover each one well with plastic wrap and aluminum foil, and place them in the freezer. When you're ready to serve, you can add the whipped cream and shaved chocolate.