The best and easy dill sauce for salmon with mayo, sour cream, chopped onion, lemon juice, horseradish, dill, garlic salt, and pepper is combined in this creamy, delicious sauce. This is a flavorful sauce for salmon that will take it to another level. Whether you pan-sear, grill , or bake salmon your favorite way - just spoon some of this dill sauce on your fillets to have your taste buds dancing. You'll love this recipe!