Salmon with Creamy Dill Sauce

Ingredients for Salmon
* 1 salmon fillet (about 2 pounds) 
* 1 teaspoon onion powder 
* 1 small onion, sliced and separated into rings 
* 6 lemon slices 
* 1/4 cup butter, cubed

Ingredients for  Dill Sauce 
* 1/3 cup sour cream 
* 1/3 cup mayonnaise 
* 1 tablespoon finely chopped onion 
* 1 teaspoon lemon juice 
* 1 teaspoon prepared horseradish 
* 3/4 teaspoon dill weed 
* 1/4 teaspoon garlic salt 
* Pepper to taste

Directions  
1. Line a 15-in. x 10-in. x 1-in. baking pan with heavy-duty foil, grease lightly. Place salmon skin side down on foil. Sprinkle with lemon-pepper and onion salt. Top with onion and lemon. Dot with butter. Fold foil around salmon; seal tightly.
2. Bake at 350° for 20 minutes. Open foil carefully, allowing steam to escape. Broil 4-6 in. from the heat for and additional 8-12 minutes or until the fish flakes easily with a fork. 
3. Combine the sauce ingredients until smooth. Serve with salmon. 

Notes
We used a few individual pieces of salmon instead of one large piece and it worked well.  All the salmon loves in our house enjoyed this salmon and sauce!