Combine ingredients in blender on smoothie/shake mode. Blend until ingredients are fully incorporated.
Have 2 glasses of your choice (recommended: martini glasses) and 2 dessert plates the width of your glass rims. On 1 plate, spoon Nutella so that it fills the plate and on the other, pour sugar. Dip glasses upside down into the Nutella first, so that it sticks to the rim entirely. Then dip the same glass rim into the sugar. Repeat for the second glass.
Now evenly pour your drink mixture from the blender into each glass. And Voila! Your Nutella Shaketinis are ready to enjoy!
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Notes
Using martini glasses really elevates the presentation, although the rims can be coated with any glass.I've provided the mocktail recipe above, but if you would like to make this a cocktail, just add up to 1-3 oz of Baileys Irish Cream, depending on how strong you like your cocktail to taste. And as always, please drink responsibly.