Ultimate Olive Garden Alfredo Pasta Copycat - My Home Made Recipe

Ingredients

• 1 lb (450 g) fettuccine
• 1 tablespoon kosher salt, for the pasta water
• 1 cup reserved pasta water, as needed
• 6 tablespoons (85 g) unsalted butter
• 4 cloves garlic, finely minced
• 1 tablespoon all-purpose flour
• 2 cups (480 ml) heavy cream
• 1/2 cup (120 ml) whole milk
• 2 cups (200 g) freshly grated Parmesan cheese
• 1/4 teaspoon fine salt, plus more to taste
• 1/2 teaspoon black pepper
• 2 tablespoons chopped fresh parsley, for serving