Mary Berry's lemon drizzle traybake cake has been a hit since the 1960s ... for this recipe you will need a 30x23cm/12x9in tray bake tin. Each serving provides 290 kcal, 4g protein, 38.5g ...

Mary Berry's lemon drizzle traybake cake has been a hit since the 1960s ... for this recipe you will need a 30x23cm/12x9in tray bake tin. Each serving provides 290 kcal, 4g protein, 38.5g ...

Pour the ganache over the chilled cake, smoothing with a spatula. Using a spoon, create a swooping effect in the chocolate, if desired. Cover and refrigerate until chilled and set, at least 4 ...