Whisk together all of the ingredients for the marinade.
Add salmon to a large gallon sized ziplock bag. Set aside 1/3 cup of the marinade and pour the rest into the ziplock bag.
Seal and use your hands to work the marinade over all of the salmon. Chill in the fridge for at least 30 minutes.
Preheat oven to 425°F and line a sheet pan with parchment paper or greased foil.
Remove salmon from the marinade and space evenly on the prepared pan. Discard the marinade.
Arrange the broccoli florets around the salmon on the sheet pan. Drizzle with olive oil and season with salt and pepper.
Bake until broccoli is tender and salmon flakes easily, 15-20 minutes depending on the thickness of the salmon, and glazing salmon halfway through with reserved marinade.
Top with sliced scallions and serve immediately.
Calories: 261kcal, Carbohydrates: 28g, Protein: 3g, Fat: 16g, Saturated Fat: 2g, Cholesterol: 1mg, Sodium: 1657mg, Potassium: 114mg, Fiber: 1g, Sugar: 23g, Vitamin A: 284IU, Vitamin C: 3mg, Calcium: 25mg, Iron: 1mg