Gluten-Free Gnocchi

This one came from The Sensitive Epicure, great blog with a lot of gluten-free recipes. 

• 1 kg (2 lb) cooked mashed/riced potatoes
  1 cup white rice flour
  ¾ cup potato starch¼ cup corn starch1 tablespoon margarine1 tablespoon grated parmesan (optional)2 eggssalt

For the gnocchi:

Place the potatoes in a large pot of salted water. Cook over high heat until fork tender, about 10-15 minutes. Drain through colander and immediately run potatoes through food mill or ricer (in batches, as needed) onto a large jelly roll pan. Make sure that the potatoes are evenly distributed in order to cool off efficiently. (This prevents heavy gnocchi.) Allow the potatoes to cool to room temperature.

Then place the potatoes onto a clean working surface. Make a small well and add the beaten egg with a small amount of the potato starch. Start worked with your clean hands and knead the dough until evenly distributed. Add more potato starch gradually, while kneading, until dough is still wet, but not sticky. Form the dough into a large, smooth ball. (At this time, dust the jelly roll pan for a place to store the cut and dusted gnocchi.) 

Using a bench scraper or a butter knife cut a ½-inch slice of the dough and roll into a rod about ¾ inch in diameter and dust with potato starch. Cut the rod of dough into small pieces, using the first joint of your index finger as a guide to ensure consistent sizing. Transfer to jelly roll pan, and make sure the entire surface of the gnocchi are lightly dusted. Repeat until all of the dough are in the form of gnocchi. Have a large pot of salted water boiling and add in the gnocchi. Once the gnocchi have risen to the surface, they are done, about 2-4 minutes. Transfer with a spider to your pot of tomato sauce, gently fold, garnish, and serve immediately.