Here is the delicious recipe of nettle gnocchis of Fat of the Land Blog :
Yummy ! Enjoy !
Think of the amounts below as estimates. The best thing to do is start with less than the full cup of flour and then keep adding. You may end up using well over a cup as I did.

1 egg, lightly beaten
1 cup nettles, boiled and chopped
1 cup or more flour
salt to taste
1. Boil nettles for a minute or two to neutralize sting. Remove to cold water. Next wring out excess water. Chop nettles, measure out a cup and then whir in a food processor.
2. Cut potatoes in half and boil in salted nettle water until tender, thirty minutes or more. Remove from water one at a time and peel. Break down potatoes with a fork and allow to cool. Make sure to attack lumps but don't over-mash.
3. Mix nettles into potatoes by hand, a little at a time.

5. Split the dough into 5 or 6 balls. The dough is ready when you can easily roll out each ball into a long snake. Again, a work surface dusted generously with flour makes this easier. Now cut into pillows.
6. Add gnocchi to salted boiling water. (You can re-use your nettle-potato water.) When they float to the surface they're done. Remove with a slotted spoon.
Thank you so much Fat of the Land !