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U.S. measurements first, metric equivalents in parentheses. Conversions are approximate; oz means weight ounces, not fluid ounces.
- 2 lb (900 g) Russet or starchy potatoes, scrubbed - 1 large egg, approx. 1 3/4 oz (50 g), lightly beaten - 1 cup (120 g) all-purpose flour, plus extra for dusting - 1 tsp (5 g) fine salt, plus more for boiling water - 1/4 tsp (1 g) freshly grated nutmeg - 4 tbsp (56 g) unsalted butter - 8 oz (225 g) Fontina cheese, shredded - 1/4 cup (25 g) Parmigiano-Reggiano, finely grated - 2 tbsp (30 ml) reserved gnocchi cooking water - Freshly ground black pepper, to taste - 8–10 fresh sage leaves
- 2 lb (900 g) Russet or starchy potatoes, scrubbed - 1 large egg, approx. 50 g, lightly beaten - 1 cup (120 g) all-purpose flour, plus extra for dusting - 1 tsp (5 g) fine salt, plus more for boiling water - 1/4 tsp (1 g) freshly grated nutmeg - 4 tbsp (56 g) unsalted butter - 8 oz (225 g) Fontina cheese, shredded - 1/4 cup (25 g) Parmigiano-Reggiano, finely grated - 2 tbsp (30 ml) reserved gnocchi cooking water - Freshly ground black pepper, to taste - 8–10 fresh sage leaves
1. Cook potatoes whole and unpeeled in boiling salted water until fork-tender, about 30–40 minutes depending on size; drain and let cool just enough to handle. 2. While still hot, peel potatoes and pass through a potato ricer or finely mash on a board to form a dry, even mound; spread slightly to release steam for 5 minutes. 3. Sprinkle nutmeg and 1 tsp (5 g) salt over the riced potatoes, add the beaten egg, then gradually fold in 1 cup (120 g) flour until a soft, non-sticky dough forms; do not overwork. 4. Divide dough into 4 portions, roll each into a 3/4-inch (2 cm) thick rope on a lightly floured surface, and cut into 1-inch (2.5 cm) pieces; shape with a fork if desired and dust with flour to prevent sticking. 5. Bring a large pot of salted water to a gentle boil. Cook gnocchi in batches; they are done when they float plus 30 seconds. Remove with a slotted spoon and set aside on a warm plate. 6. In a large skillet over medium heat, melt 4 tbsp (56 g) butter until it begins to foam; add sage leaves and fry briefly to perfume the butter. 7. Add cooked gnocchi to the skillet and sprinkle with shredded 8 oz (225 g) Fontina; toss gently off the heat, adding 2 tbsp (30 ml) reserved cooking water as needed, until the Fontina melts into a creamy coating. 8. Stir in 1/4 cup (25 g) Parmigiano-Reggiano, adjust seasoning with black pepper and a pinch of salt if needed, and serve immediately while the cheese is molten.
Per serving | Servings: 4
Nutrition estimated: November 5, 2026
*Values are estimates based on USDA data and mathematical calculations. Actual values may vary. Where data are unavailable, those contributions are excluded. Calories, Carbohydrates, Protein, Fat, Saturated fat, Cholesterol, Fiber, Sugar, Sodium, Potassium, Calcium, Iron, Vitamin A, Vitamin C and Vitamin D are known subtotals. Missing contributions are unknown, not zero.