Roast for about 50 minutes or until the edges of the sprouts are nicely browned.
Place the butter in a deep skillet over medium heat.
Not stirring or moving the pan, allow the butter to come to a foam.
Watch for the foam to subside and listen for the butter to stop sizzling. Remove once this happens. The butter should change to a light amber brown color. Remove from heat.
Pour the butter over the roasted sprouts once they are done.
Drizzle with the lemon juice, top with Parmesan and parsley.