Nana'S Spinach Gnocchi - cooking recipe

Ingredients

1 lb spinach, boiled,squeezed dry and strained
2 1/2 lbs potatoes, boiled,peeled and hand mashed
2 egg yolks
2 tablespoons grated parmesan cheese
1/4 teaspoon salt
5 tablespoons flour
5 quarts boiling water
3 tablespoons salt
4 ounces butter, for sauce (optional)
4 tablespoons grated parmesan cheese, for sauce (optional)

Preparation

In a large pot, add 3 Tablespoons salt to 5 quarts of water, bring to a boil.
Place spinach, potatoes, egg yolks, Parmesan cheese, salt and four in a large bowl, use a wooden spoon or spatula to mix ingredients together to form a dough.
On a floured board, roll dough into long, finger-thin ropes.
Cut ropes into pieces about 1-2 inches long.
Flatten each piece gently with thumb and bring long sides together to form a hollow tube or shell shape.
After shaping all the dough, place about 20 gnocchi into a large pot of boiling, salted water.
When they rise to the surface, remove them from the pot with a strainer.
Place in a heated bowl.
Keep water at a hard, rolling boil and continue cooking the gnocchi (20 at a time) until all are cooked.
Toss with butter and grated Parmesan cheese or your favorite sauce and serve.