Bring a large pot of salted water to a boil. Add 8 oz of your pasta of choice and cook according to package instructions until al dente. Reserve about 1/2 cup of the pasta water, then drain the pasta and set aside.
While the pasta cooks, heat a dry skillet over medium heat. Add 1/2 cup of walnuts and toast, stirring frequently, until they become fragrant and slightly golden, about 3-5 minutes. Remove from heat and roughly chop. Set aside.
In the same skillet, heat 2 tablespoons of olive oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant but not browned.
Pour in 1 cup of heavy cream and bring to a gentle simmer. Stir frequently and let it thicken slightly for about 3 minutes. Lower the heat and add 1 cup of crumbled Gorgonzola cheese, stirring until it fully melts into the cream, creating a silky sauce.
Add the cooked pasta to the sauce, tossing to coat each piece evenly. If the sauce feels too thick, splash in some reserved pasta water a little at a time until you reach your desired consistency.
Stir in the toasted walnuts, then season with salt and freshly cracked black pepper to taste.
Serve immediately, garnished with a generous sprinkle of freshly chopped parsley.