Neelys Twice Smashed Baked Potatoes

INGREDIENTS

• 4 tablespoons softened butter
• 4 large russet potatoes, each about 3/4 pound each, well scrubbed
• Salt and freshly ground black pepper
• 1/2 cup shredded smoked Gouda, plus extra for topping
• 1/2 pound broccoli florets, blanched
• 1/2 cup shredded sharp Cheddar, plus extra for topping
• 1/2 cup sour cream
• Butter, for serving, optional