Add the avocados, almond milk, sweetener, melted coconut oil, and peppermint extract to a high-speed blender.
Blend everything until the mixture becomes smooth, creamy, and evenly combined.
Add the chocolate chips and gently stir them into the mixture.
Transfer the mixture to a freezer-safe container. A loaf pan lined with parchment paper works well for easy removal later.
Place the container in the freezer and allow the ice cream to firm up for about 4 to 5 hours.
When ready to serve, remove the ice cream from the freezer and leave it at room temperature for 5 to 10 minutes so it can soften slightly.
Scoop into bowls or cones and enjoy your homemade frozen treat.