In a food processor or blender, pulse the biscuits and macadamias to a fine breadcrumb texture.
Divide the base mixture evenly between four serving glasses.
Wipe down the food processor bowl with a clean paper towel and add avocado flesh, lime juice, coconut cream, honey and salt. Process for 5 minutes or until whipped and airy.
Using a spoon (or an ice cream scoop) divide the mixture between the prepared biscuit macadamia base.
Zest lime over the top and serve.