Pineapple upside down cake is a retro favourite that's stood the test of time for good reason. Moist, tangy and easy to make, it's a great make-ahead dessert served with ice cream or custard.
Melt the butter, then mix with the crushed biscuits. Tip the mixture into the prepared tin and press into an even layer over the base. Bake on the middle shelf of the oven for 4–5 minutes ...