Begin by popping your microwave popcorn according to the package instructions. Once popped, transfer it to a large mixing bowl, making sure to remove any unpopped kernels.
In a microwave-safe bowl, combine the white chocolate chips and canola oil. Microwave in 30-second intervals, stirring after each, until the chocolate is smooth and fully melted.
Once the chocolate is melted, pour it over the popped popcorn. Use a spatula or wooden spoon to gently mix the popcorn until it’s evenly coated in the chocolate.
Sprinkle the crushed Oreo cookies over the chocolate-coated popcorn. Continue mixing gently to ensure the cookie pieces are well distributed throughout the popcorn.
Spread the mixture onto a baking sheet lined with parchment paper. If desired, sprinkle additional white chocolate chips or Oreo crumbs on top for an extra touch.
Let the popcorn sit at room temperature until the chocolate has set, which will take about 30 minutes. For quicker setting, you can place it in the refrigerator for about 10-15 minutes.
Once the chocolate has hardened, break the popcorn into clusters and serve in bowls or bags. Enjoy your Easy Cookies and Cream Popcorn with friends and family!