Step 1. Preheat the Oven and Prepare the Pans

Preheat your oven to 180°C (350°F). Grease and line two 8-inch round cake pans with parchment paper to prevent sticking.

Step 2. Combine Dry Ingredients

In a large mixing bowl, sift together the flour, caster sugar, baking soda, ground cinnamon, and salt. Mix well to combine.

Step 3. Mix Wet Ingredients

In a separate bowl, whisk together the eggs, vegetable oil, and vanilla extract. Add the mashed bananas and crushed pineapple, mixing until evenly combined.

Step 4. Combine Wet and Dry Ingredients

Pour the wet ingredients into the bowl of dry ingredients. Add the chopped pecans or walnuts if using. Gently fold the mixture until just combined, being careful not to overmix.

Step 5. Divide Batter and Bake

Divide the batter evenly between the prepared cake pans. Smooth the tops with a spatula, and bake in the preheated oven for 25-30 minutes, or until a skewer inserted into the center of each cake comes out clean.

Step 6. Cool the Cake Layers

Allow the cakes to cool in the pans for 10 minutes, then transfer them to a wire rack to cool completely.

Step 7. Prepare the Cream Cheese Frosting

In a mixing bowl, beat the softened cream cheese and butter together until smooth. Gradually add the powdered sugar, beating until smooth and creamy. Stir in the vanilla extract.

Step 8. Assemble the Cake

Place one cake layer on a serving plate and spread a layer of cream cheese frosting on top. Place the second cake layer on top, then spread the remaining frosting over the top and sides of the cake.

Step 9. Decorate and Serve

For a finishing touch, sprinkle chopped pecans or walnuts on top, or decorate with fresh pineapple slices or edible flowers. Slice and enjoy!