Scoop the seeds and stringy pulp out of the squash cavities and discard. In a small mixing bowl, combine the brown sugar, butter, syrup and salt and pepper, to taste. Rub the squash cavities and cut sides of the squash with the butter mixture and place them on a baking sheet, cut side up. Bake in the preheated oven for about 1 hour until the squash is tender when pierced with a fork. Serve 1 half per person.