Bistro Turkey Sandwiches

Ingredients

• 1 small red onion, thinly sliced
• 4 teaspoons brown sugar, divided
• 1 tablespoon olive oil
• 1/4 teaspoon salt
• 1/8 teaspoon cayenne pepper
• 1/4 cup Dijon mustard
• 1 tablespoon apple cider or unsweetened apple juice
• 6 wheat sandwich buns, split
• 6 Bibb or Boston lettuce leaves
• 1 medium pear, peeled and thinly sliced
• 1 pound cooked turkey breast, thinly sliced
• 1/4 cup loosely packed basil leaves
• 6 tablespoons crumbled Gorgonzola cheese