Begin by bringing a large pot of salted water to a vigorous boil. Once boiling, gently add the gnocchi. Cook for about 2-3 minutes or until the gnocchi rise to the surface, indicating they are ready. Use a slotted spoon to carefully remove them from the pot and set aside on a plate.
In a large skillet over medium heat, melt the butter along with the olive oil. Once melted and shimmering, add the minced garlic. Sauté for about 1 minute, or until the garlic becomes fragrant and slightly golden—be careful not to burn it.
Add the pumpkin puree to the skillet, stirring well to combine. Allow it to cook for an additional 2-3 minutes, ensuring it is thoroughly heated through.
Reduce the heat to low and slowly pour in the heavy cream, whisking continuously until the mixture is smooth and creamy. Gradually add the grated Parmesan cheese, stirring constantly until it melts into the sauce, creating a rich and luscious texture.
To enhance the flavor, add the chopped sage, freshly grated nutmeg (if using), and a pinch of salt and pepper to taste. Let the sauce simmer for about 5 minutes, allowing the flavors to meld beautifully.
Carefully add the cooked gnocchi to the pumpkin Alfredo sauce. Gently fold them in to ensure each piece is generously coated in the creamy sauce. Allow everything to heat together for an additional 2 minutes, ensuring it's steaming but not boiling.
Remove the skillet from heat and let it rest for a minute. Taste the dish and adjust the seasoning with more salt or pepper if needed.
Notes
For an elegant touch, serve in individual bowls and garnish with sage and Parmesan.