Preheat the oven to 350°F and lightly grease a 9x13-inch baking pan or line it with parchment paper
In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, cloves, and salt
In a large mixing bowl, beat the butter, oil, granulated sugar, and brown sugar until light and creamy
Add the eggs one at a time, mixing well after each addition, then stir in the vanilla
Mix in the sour cream until smooth
Gradually add the dry ingredients to the wet mixture, stirring just until combined
Fold in the diced apples evenly
Pour the batter into the prepared pan and spread it out evenly
Bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean
Let the cake cool before slicing and serving with the caramel syrup