In a large mixing bowl, combine the heavy cream, sweetened condensed milk, and vanilla extract. Whisk together until well blended and slightly thickened.

Gently fold in the crushed Oreo cookies and mini chocolate chips (if using) until evenly distributed.

Pour the mixture into a freezer-safe container, smoothing the top with a spatula.

Cover the container with a lid or plastic wrap and freeze for at least 4 hours, or until the ice cream is firm.

Before serving, let the ice cream sit at room temperature for about 5-10 minutes to soften slightly for easier scooping.