Pre-heat oven to 350F (180C), grease and flour a nine inch (23 cm) bundt pan (a cake pan would work too).
In a medium bowl add the chopped apples and sprinkle with the lemon juice.
In a large bowl beat the eggs and sugar until creamy and light approximately 3-4 minutes. Then add the yogurt and oil, sift the flour, corn starch, baking powder, baking soda, salt and zest into the bowl add the zest then beat until combined.
Fold in the apples, spoon into the prepared cake pan, sprinkle with a couple of tablespoons of granulated sugar and bake for approximately 35-40 minutes (check for doneness with a toothpick). Let cool completely before removing from pan. Dust with powdered sugar if desired. Enjoy!