Preheat the oven at 175C degree.
Add flour, corn starch and baking powder into a bowl. Mix together and sift 3 times.

Add butter and icing sugar into a mixer bowl.Whisk them for 2-3 minutes, until combined and become smooth and creamy.
Then add vegetable oil and keep stirring.

Next add eggs, one at a time. Whisk each egg for 20-30 seconds until well combined and then add next egg. After third egg, add vanilla extract.

Now, gradually add flour to the mixture and keep stirring with a spatula or wooden spoon. Now, our batter is ready.

Sprinkle good amount of cinnamon powder on the apple slices and toss them.

Grease inside the tart moulds. Fill the mould halfway. Then set 3-4 slices of apple on the batter and cover apples with more batter.

Place the cake moulds in the preheated oven and bake for 25-30 minutes.Transfer the baked cakes from the oven. Let cool down and take out from the moulds. Befor serving, Dust with icing sugar or with a mixture of icing sugar and cinnamon over the baked tiny cakes
Ready to serve. Smell is soooo good.They are very yummy.