Good-Cooking - Sauerkraut Apple Cake

Ingredients

• 4 eggs
• 1 cup granulated sugar
• 1/2 cup packed brown sugar
• 1 (14 ounce) can sauerkraut, rinsed and drained
• 1 large tart apple
• 1 cup vegetable oil
• 1 cup chopped walnuts
• 2 cups all-purpose flour
• 2 teaspoons baking powder
• 2 teaspoons ground cinnamon
• 1 teaspoon baking soda
• 1 teaspoon salt
• 1/2 teaspoon ground nutmeg
• 8 ounces cream cheese, softened
• 2 to 3 tablespoons whipping cream, divided
• 4 1/2 cups confectioners' sugar
• 1 tablespoon grated orange peel
• 1/2 teaspoon ground cinnamon
• 1 teaspoon vanilla extract
• Chopped walnuts (optional)