Bourbon and Brown Sugar Flank Steak with Garlic-Chive Mashed Potatoes

INGREDIENTS

• 1/4 cup packed dark brown sugar
• 1/4 cup minced green onions
• 1/4 cup bourbon
• 1/4 cup low-sodium soy sauce
• 1/4 cup Dijon mustard
• 1/2 teaspoon freshly ground black pepper
• 1/4 teaspoon Worcestershire sauce
• 1 (2-pound) flank steak, trimmed
• Cooking spray
• 1/2 teaspoon cornstarch
• 3 pounds small red potatoes
• 6 garlic cloves, peeled
• 1/2 cup reduced-fat sour cream
• 1/3 cup 2% reduced-fat milk
• 2 1/2 tablespoons butter
• 1 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 1/4 cup chopped fresh chives
• Garnish:
• 8 fresh chives, cut into 1-inch pieces