Mash up the avocados in a medium bowl and mix in the lime juice. Distribute the mash between ice cube trays, place in the freezer and freeze overnight or for several hours until completely hardened.
Combine the avocado cubes and maple syrup in an upright high-speed blender. If you have a blender with a tamper, like Vitamix, start out by adding just half of the can of coconut milk. If your blender does not have a tamper, you will likely need to add the whole can in order to get things moving. Blend until smooth, adding more coconut milk if needed.
Serve right away, garnished with cacao nibs and chocolate drizzle, or on its own.
to make the chocolate drizzle
Melt the chocolate chips on a double boiler. Mix in the coconut oil. The chocolate should now be thin enough to drizzle. Add a bit more oil if the chocolate needs more thinning.
Recipe by Golubka Kitchen at https://golubkakitchen.com/avocado-soft-serve/