Preheat oven to 180C/160C fan/gas 4. Using butter, grease four 3-4" cake rounds and using baking parchment, line the base.
In a bowl, mix together your flour, spices, baking powder and salt.
In another bowl, mix together your vegetable oil with your sugar until smooth and creamy. Add in the eggs one at a time so it doesn't curdle and then fold in your dry ingredients before adding your vanilla and apples.
Spread batter evenly into your baking cake rounds and bake in the oven for 8 minutes. Insert a tooth pick into the middle of the cake and if it comes out clean, then your cake is ready.
Place cakes on wire rack to cool. They usually take up to 20 minutes to cool all the way through. If preparing in advance, let cool before covering and putting in the fridge.
Once your cake has set and you're ready to layer it, make sure you trim the edges to remove the outside crust. This will allow you to decorate your cake perfectly.