Using a double-boiler or microwave safe boil, slowly melt Nutella and coconut oil together. Use medium heat with a double boiler; for the microwave, stir every 20 seconds until mixed.
Pour into a resealable container. When ready to use, drizzle over ice cream. Let rest for 30 seconds until hard - the chocolate will change from glossy to matte. Store in an airtight container for up to 2 weeks.
Notes
*Using refined coconut oil will remove any coconut flavor.