Add the potatoes to a large pot of salted boiling water and cook for 20–25 minutes, or until easily pierced with a fork. Drain and set aside until cool enough to handle, but still warm.
While the potatoes are cooking, make the tomato sauce: Heat 2 tablespoons of olive oil in a large, high-walled skillet over medium heat. Add the onion, season with salt and sauté until soft, 5–7 minutes. Add the tomatoes, season with salt, and cook until they start to burst, about 5 minutes. Add the water and remaining 2 tablespoons of olive oil. Cover and cook until the tomatoes have broken down into a sauce, about 15 minutes. Remove from the heat and cover until ready to serve.
Using a peeler or your fingers, remove the skin from the potatoes. Pass the potato flesh through a ricer or food mill into a large bowl. Add the egg and mix until just combined. Slowly incorporate the flour, a little at a time, until the dough starts to form. Be careful not to overwork the dough. If the dough still feels sticky, add a little more flour, 2 tablespoons at a time.
Transfer dough to a lightly floured surface. Cut into 4 portions. Roll out 1 portion into a long rope, about 1 inch wide. Cut in half crosswise, then cut each half into 1-inch pieces. Set aside on a lightly floured surface while you repeat with the remaining dough.
If desired, roll each gnocchi on a fork or gnocchi board to make decorative ridges.
Bring a large pot of salted water to a boil. Working in batches, add the gnocchi, stirring gently once or twice to ensure they are not sticking to the bottom of the pot or each other. Boil until the gnocchi float to the surface, then wait another 15–30 seconds and remove from the water with a slotted spoon. Reserve ½ cup of the cooking water.
Reheat the tomato sauce over medium heat. Add some of the reserved pasta water and stir to combine. Check for seasoning and add salt if needed. Add the gnocchi to the sauce and toss until well coated, adding more pasta water as needed to create a thick sauce.
Serve immediately and enjoy!
Nutritional Facts
Per 2 servings
Calories: 669
Carbohydrate: 85g
Fat: 31g
Fiber: 7g
Protein: 14g
Sugar: 9g
Related Recipes
Easy Homemade Potato Gnocchi
Quick Gnocchi
Pumpkin-Shaped Potato Gnocchi For Fall
Grandma's Gnocchi
Gnocchi with Tomato Sauce and Mozzarella
Gnocchi with Cherry Tomato Sauce
Chef John's Potato Gnocchi
Sheet Pan Gnocchi
Sweet Potato Gnocchi
Easy Gnocchi with Tomato Sauce
Cauliflower Gnocchi with Pesto and Sun Dried Tomatoes