Roasted Brussel Sprouts with Honey Glaze

Ingredients

• 1½ lb. brussels sprouts, trimmed, halved
• ¼ cup extra-virgin olive oil
• ½ tsp. kosher salt, plus more
• ¼ cup honey
• ⅓ cup sherry vinegar or red wine vinegar
• ¾ tsp. crushed red pepper flakes (optional)
• 3 tbsp. unsalted butter
• 3 scallions, thinly sliced on a diagonal
• 1 tsp. finely grated lemon zest
• Freshly ground black pepper