-
Bring the water to a boil.
-
Blanch the nettle leaves (reserving some fresh for garnish. I reserved the flowers for this purpose) in the boiling water for 1 minute. Place a layer of paper towels beside the stove.
-
Turn off the heat and remove the nettles with a strainer or a slotted spoon. Transfer them to the paper towels and pat off the excess water.
-
Leave the water on the stove. You will cook the spätzle in it.
-
Puree the blanched nettles with the heavy cream. Let cool completely
-
Place the flour, eggs, egg yolk, salt, and sour cream in a mixing bowl. Use a wooden spoon to combine everything. Alternatively, you can use your mixer fitted with the dough attachment.
-
Add the cooled nettle puree to the dough and combine thoroughly.
-
Add a cup of water and 1 teaspoon salt to the nettle water and bring it to a boil again.
-
Use a spätzle press or colander with large holes to push the dough through into the water.
-
When the späztle pops up to the top they are done, use a slotted spoon to remove them from the pot and transfer to a strainer.
-
When all of the spätzle has been cooked and transferred to the cold water, drain the cooked spätzle into a colander and shake off the excess water. Pat dry and set aside.