In a jar or a bowl, combine the Nutella, heavy cream, vanilla extract, and salt.
If using a jar, close the lid tightly. If using a bowl, make sure it's deep enough to prevent splattering.
Shake the jar vigorously for a few minutes until the heavy cream starts to solidify and thicken then place in the freezer for 3-5 hours. If using a hand blender, blend the ingredients until they form stiff peaks.
Once the mixture has thickened and holds its shape (resembling whipped cream), transfer it to a freezer-safe container with a tight-fitting lid.
Place the container in the freezer for at least 3-5 hours, or until the ice cream is completely frozen.
When ready to serve, let the ice cream sit at room temperature for a few minutes to soften slightly before scooping.