Apple Cupcakes with Caramel Buttercream Frosting - Cupcake Fanatic

Ingredients

• 3 cups all-purpose flour
• 4 teaspoons baking powder
• 3/4 teaspoon cinnamon
• 1 teaspoon salt
• 4 eggs
• 1 cup sugar
• 1 cup brown sugar
• 1/4 cup orange juice
• 2 teaspoons vanilla extract
• 1 cup vegetable oil
• 2 cups grated apples**
• 1 cup plus 2 tablespoons sugar
• 1/4 cup water
• 1/4 cup heavy cream
• 1/4 teaspoon salt
• 3 sticks unsalted butter, softened
• 4 large egg whites, room temperature