Begin by crushing the Oreo cookies into fine crumbs using a food processor or by placing them in a zip-top bag and using a rolling pin.
In a mixing bowl, combine the crushed Oreos and softened cream cheese until well blended. The mixture should be smooth and moldable.
Using a cookie scoop or your hands, shape the Oreo mixture into small balls (about 1 inch in diameter) and place them on a parchment-lined baking sheet. Chill in the refrigerator for at least 30 minutes, or until firm.
While the Oreo balls are chilling, melt the white chocolate chips in a microwave-safe bowl. Heat in 30-second intervals, stirring in between, until completely melted. Add vegetable oil to the melted chocolate for a smoother consistency.
If desired, divide the melted chocolate into separate bowls and add food coloring to create colorful chocolate for dipping.
Dip each Oreo ball into the melted chocolate, allowing excess to drip off. Return to the parchment-lined baking sheet. Quickly sprinkle with Easter-themed sprinkles before the chocolate hardens.
Once all the Oreo balls are dipped and decorated, place them back in the refrigerator for about 15 minutes to let the chocolate set.
Enjoy your Easter Oreo Cookies fresh or store them in an airtight container in the fridge for up to a week.