01 -
Preheat oven to 175°C. In a mixing bowl, combine French vanilla cake mix, eggs, whole milk, melted butter, and sour cream. Whisk until smooth, avoiding overmixing. Pour batter into a greased 23 x 33 cm cake pan.
02 -
Bake for approximately 30 minutes or until a skewer inserted into the centre comes out clean. Allow cake to cool for 10 minutes.
03 -
Using the handle of a wooden spoon, poke holes across cake surface, spacing holes 2.5 cm apart and reaching to pan bottom.
04 -
Whisk banana cream instant pudding mix with 720 ml cold whole milk in a large bowl for 2 minutes until thickened. Drain half of the crushed pineapple, reserving juice for other use. Fold drained pineapple into pudding mixture.
05 -
Pour pudding mixture over the warm cake, ensuring it settles into all holes. Gently smooth with a spatula.
06 -
Fold thawed whipped topping into any remaining pudding mixture until fully combined. Spread evenly over cake surface. Drain remaining crushed pineapple and scatter over whipped topping.
07 -
Cover cake and refrigerate for at least 4 hours or overnight for optimal flavour infusion and texture. Serve chilled.