Homemade Easy Apple Cake…..

Ingredients
For cake batter:
1 ½ cup flour
½ cup sugar
1 ½ tsp baking powder
1 tosp cinnamon
¼ tsp salt
2 eggs
1 tsp vanilla
⅓ cup oil
½ cup milk
2- 3 apples
For sauce:
¼ cup butter
½ cup brown sugar