Cinnamon Waffles with Caramelized Apples

INGREDIENTS

• 3 Tbs. unsalted butter, plus 8 Tbs. (1 stick) melted butter
• 6 Fuji apples, peeled, cored and cut into 1/4-inch slices
• 1/2 cup plus 1/3 cup sugar
• 1 tsp. cornstarch
• 1 1/2 tsp. ground cinnamon
• 1/2 tsp. freshly grated nutmeg
• 3/4 tsp. salt
• 2 1/2 tsp. vanilla extract
• 3 eggs, separated
• 1 3/4 cups buttermilk
• 1 3/4 cups all-purpose flour
• 1 1/2 tsp. baking powder
• 1 tsp. baking soda
• Whipped cream for serving