Preheat the oven to 400 degrees. Melt butter then combine with sugar until it gets properly mixed.
Line up your baking sheet, place salmon on it. Brush with already prepared butter mixture, sprinkle salmon with salt and pepper.
Bake for 20-25 minutes. When the salmon is almost ready, place it under the broiler in order to get a golden color result.
Remove the salmon and squeeze fresh lemon juice with chopped scallions over it.