Once the hazelnut butter is creamy and smooth, add the vanilla and salt and blend well. Then add melted chocolate a little at a time and blend again until well incorporated. Taste and adjust seasonings as needed, adding more salt or vanilla if desired.
*If you don’t want to use melted chocolate, sub cocoa powder. Once the nut butter has formed, add 3 Tbsp cacao or unsweetened cocoa powder, vanilla, and sea salt and puree. Once incorporated, add 2-3 Tbsp (or to taste) maple syrup, agave, or honey if not vegan. NOTE: The more liquid sweetener you add, the firmer/stiffer the Nutella seems to get. Blend until creamy and smooth.
*Recipe as written yields roughly 2 1/2 cups nutella spread.
*Nutrition information is a rough estimate.