This classic pineapple upside-down cake recipe is made even easier with the help of a Thermomix. The cake is made with a buttery, brown sugar topping and juicy pineapple rings, which are then covered with a light and fluffy cake batter. The Thermomix makes quick work of mixing the batter, and the cake bakes up perfectly every time. Serve warm with a dollop of whipped cream for a delicious dessert that everyone will love.