01 - Boil fettuccine in salted water until al dente. Reserve 1/2 cup pasta water, then drain.
02 - Melt butter in a skillet over medium heat. Add shallots and garlic; sauté until soft and fragrant, about 2-3 minutes.
03 - Pour in white wine and simmer until reduced by half, approximately 3 minutes.
04 - Stir in heavy cream and lemon zest. Bring to a gentle simmer and season with salt and pepper.
05 - Incorporate flaked smoked salmon and half the dill. Heat through gently without overcooking.
06 - Add drained pasta to the skillet, tossing to coat. Add reserved pasta water as needed for consistency.
07 - Remove from heat, stir in lemon juice, and adjust seasoning. Serve garnished with dill, black pepper, and lemon wedges.