Preheat oven to 160 °C (320°F) with the fan on (see note 3 if you don't have a fan function) and grease and/or line two 8 inch cake tins (I use my homemade cake release). Begin by peeling and finely grating your carrots and set them aside for later. Also prepare your pineapples, so blend your canned pineapple (remember to discard the liquid before blending) and set aside for later.
In a bowl, sift together your flour, cornstarch, baking powder, baking soda, salt, cinnamon, ginger, cloves, and nutmeg. Using a whisk, mix until well combined. Set aside.
In a large mixing bowl combine your soft brown sugar, eggs, vegetable oil, vanilla, yoghurt and crushed pineapple. Using a whisk, mix until well combined, and then for a further minute to incorporate some air into the batter.
Add your dry ingredients into your wet mixture and using a spatula, gently fold together until just combined. Do not overmix.
Add in the grated carrots and walnuts and/or pecans. Using a spatula, gently fold through until just combined. Do not overmix.
Distribute the batter evenly into the two 8 inch cake tins, and then give the cake tins a light bang on the counter to release any large air bubbles.
Bake for 35 minutes, or until a toothpick comes out clean. Allow to cool in the cake tins for about 20 minutes and then turn them out onto a wire rack to completely cool, before frosting with my favourite cream cheese buttercream.