Preheat the oven to 425°F (220°C) and lightly grease a baking dish.
Pat the salmon fillets dry with a paper towel. In a small bowl, mix together the olive oil, garlic, 1 tablespoon of lemon juice, and white wine (or Dijon mustard if using). Rub this mixture over the salmon fillets and arrange them in the prepared baking dish. Season with salt and pepper.
Bake the salmon for 10-12 minutes, or until the fish is opaque throughout and flakes easily with a fork.
Meanwhile, prepare the sauce by melting the butter in a small saucepan over medium heat. Add the minced garlic and sauté for about 30 seconds, until fragrant.
Pour in the wine (or Dijon mustard) and let it simmer for 2-3 minutes, allowing it to reduce slightly. Add the cream, stirring constantly until the sauce thickens a bit.
Remove the saucepan from the heat and mix in the remaining lemon juice and half of the chopped parsley.
Once the salmon is done, pour the lemon butter cream sauce over it in the baking dish, allowing it to blend with the natural juices from the salmon.
Garnish with the remaining parsley and serve hot. Enjoy!