Place Nutella into piping bag and refrigerate about 30 mins so it becomes firmer for piping.
Slice off a tiny bit of top end of strawberry (where attached to green) so that the strawberry can stand on a flat surface. Then make a deep knife cut on tip of strawberry. You want to make two cuts for each strawberry in the shape of an “X” or a cross. You want to cut about 3/4 of the way down, but not all the way. Use your finger to help separate the petal of the strawberries so that they open up enough for stuffing.
Remove Nutella from fridge and pipe into each of the strawberries. (As I stated in my post, it is hard to pipe it pretty. If you want a prettier presentation, I think it's better to do a Nutella whipped cream mixture.)
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.