Chocolate-orange, lemon-blueberry, banoffee pie, banana split, or tiramisu trifles are other flavors you could put together with less time than you think, as long as you're using instant custard ...

In a bowl, dissolve custard powder with cold milk, avoiding lumps. Add sugar to warm milk, stirring until completely ...

Once almost melted, remove from the heat and stir until smooth. Add the custard to the melted chocolate and stir well. Transfer to a saucepan and heat very gently, for just 20–30 seconds ...