Apple upside down cake

Name: Apple upside down cake
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Ingredients: 2 medium sized apples (- rinsed, peeled, cored and sliced); 2 to 3 tablespoon organic demerara sugar (or brown sugar or powdered sugar); ¼ teaspoon cinnamon powder; ¼ teaspoon nutmeg powder; few drops of lemon juice; 1 cup organic whole wheat flour; ½ cup organic all purpose flour; ½ teaspoon baking powder; ½ teaspoon baking soda; ¾ cup organic powdered jaggery (or organic unrefined cane sugar or powdered sugar - adjust as per your sweet requirements); 1 pinch salt; ¼ teaspoon cinnamon powder; 1 teaspoon lemon juice; 1 cup water; ¼ cup sunflower oil or any neutral tasting vegetable oil; ½ teaspoon ground vanilla powder (or ½ teaspoon vanilla extract)