Heat butter in large nonstick skillet over medium heat until melted. stir in flour; cook 5 to 7 minutes until mixture is deep brown, stirring often. Whisk in broth until smooth; simmer 3 minutes, stirring often. Reduce heat to medium-low; cook 2 to 3 minutes or until thickened. Stir in bouillon granules and pepper; stirring until combined. Season with salt, as desired.