For the final technical challenge Mary Berry asked the bakers to make this simple sponge with homemade jam and buttercream – without a recipe. For this recipe you will need two 20cm/8in sandwich tins, an electric mixer and piping bag fitted with plain nozzle.
Raspberry Oatmeal Crumble Bars - Fast, easy, no-mixer bars great for breakfast, snacks, or a healthy dessert!! The big crumbles are irresistible! Fresh raspberries not needed so you can make the bars year round!!