Preheat the oven to 375 F
Sprinkle both sides of the salmon with salt and pepper, place on a baking dish and cook until the salmon flakes easily with a fork, about 12-14 minutes. While the salmon is cooking, melt the butter in a small saucepan over medium heat. Add the garlic and cook for 30 seconds. Whisk together the broth, lemon juice and flour until well blended and add to the saucepan. Bring the mixture to a simmer, stirring constantly. Continue to simmer and stir gently until the liquid thickens slightly, about 2 minutes. Stir in the capers and parsley. Place the cooked salmon on a plate and drizzle with the sauce. Serve with rice and broccoli on the side.