Blend all ingredients together in a blender on high speed until smooth. Transfer mixture to your ice cream maker per the manufacturer's directions and churn until smooth and creamy. Avoid over-churning so you do not end up with hardened ice cream. Serve with additional macadamia nuts and chocolate chips, if desired!
*I use this electric Whynter model which sits on my kitchen cart and simply needs to be plugged in! No freezing overnight required! I never let it run the full 60 minutes to prevent hardening and always scrape down the sides after 20 minutes or so.