For the Gnocchi
In a large pot of salted, boiling water, blanch spinach for about a minute, until it turns bright green. Drain, cool, squeeze out excess water and chop fine.
Mix spinach, basil, ricotta, parmesan, ground walnuts, 1/2 cup rice flour, yolks, salt, pepper and nutmeg in a large bowl until a dough forms.
Working in small batches, using remaining flour to coat your hands and surface, roll dough into ropes, about 1/2" in diameter. Cut rope into 1" pieces and form into ovals. (This is a great task for the kids!) Place finished gnocchi on a cookie sheet. Repeat with remaining dough.
In a large pot of boiling, salted water, cook gnocchi, in small batches, about 4-5 minutes.
For the Brown Butter Gorgonzola Sauce
In a medium saute pan, over a medium heat, toast chopped walnuts about 1 minute.
Add butter and melt, stirring until butter is a light golden brown and smell nutty.
Pour over warmed gnocchi. Sprinkle with chiffonade of basil and crumbled Gorgonzola.
Serves 8 as a first course or side dish.