Place Cool Whip and milk in a bowl. Whisk to combine.
Add Nutella. Whisk thoroughly to combine, scraping the bottom of the bowl as the Nutella will settle quickly until combined.
Pour into molds and freeze 6+ hours until solid.
To loosen popsicles, run under warm water.
For next level popsicles, drizzle melted chocolate over frozen popsicles and place in the freezer for 15 minutes to freeze.