Kue Mangkuk Pai Apel

Bahan-bahan (12 porsi)

• 1 ½ cup all-purpose flour
• ¾ cup granulated sugar
• ¼ teaspoon salt
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• 1 teaspoon cinnamon
• ¼ teaspoon nutmeg
• ¾ cup sour cream
• ½ cup vegetable oil
• 1 room temperature egg
• 2 teaspoons vanilla extract
• 1 ½ cups diced apples, (about 2 apples)
• 1 teaspoon lemon juice
• ⅓ cup granulated sugar
• 2 teaspoons cornstarch
• ½ teaspoon cinnamon
• ⅛ teaspoon nutmeg
• ⅛ teaspoon salt
• 1 cup softened unsalted butter
• 4 cups powdered sugar
• ½ cup brown sugar
• 1 tablespoon vanilla
• 1 teaspoon cinnamon
• 4 -5 tablespoons heavy cream