Open the Oreo cookies in half down the middle (I try to get the frosting all on one side, but its not necessary, just looks nice).
Scoop a tablespoon of cookie dough and roll it into a ball. Place ontop of one side of the Oreo cookie. Top with second half of the the Oreo and flatten the cookie dough to spread it to the edges.
Repeat with remaining Oreos and cookie dough.
Melt chocolate chips in a medium sized bowl in the microwave for 30 seconds, then stir. Repeat for another 30 seconds and stir till smooth.
Dip cookie sandwiches half way into the melted chocolate and place on a cookie sheet lined with waxed paper or a silicon liner.
Top with sprinkles if desired.
Place pan in the fridge to allow chocolate to set.
Keep leftover cookies on a ziplock bag or airtight container in the fridge for 3-4 days.