smoked salmon fettuccine alfredo

Ingredients

• 10 ounces fettuccine, cooked according to package instructions
• 1 tablespoon oil
• 1/4 cup red onions, minced
• 2 large cloves garlic, pressed
• 1/4 cup unsalted butter
• 1 1/4 cups 35% heavy cream
• 1/4 cup dry white wine
• 1 cup (1/2 lb.) smoked salmon, flaked
• 1 1/4 cups parmigiano-reggiano cheese, grated and divided
• 1/4 teaspoon white pepper
• 1/4 teaspoon red pepper flakes
• 1 teaspoon lemon zest
• 2 tablespoons dill, chopped
• ground himalayan sea salt, to taste if needed