This traybake is a light sponge cake infused with grated lemon zest and ground or crystallised ginger. Baked in a rectangular tin, it rises evenly and slices cleanly into squares. It’s finished with a smooth lemon icing drizzled across the top for extra flavour. The cake is known for its simplicity — no layering, no complex steps — just a quick, dependable bake that delivers classic Mary Berry charm.
225g self-raising flour
1 teaspoon baking powder
225g butter, softened
225g caster sugar
4 large eggs
Zest of 2 lemons
2 teaspoons ground ginger or 3 tablespoons finely chopped crystallised ginger
1–2 tablespoons milk (only if the batter needs loosening)
175g icing sugar
2–3 tablespoons fresh lemon juice (adjust for thickness)
Prepare the tin: Grease and line your traybake tin with baking parchment.
Combine the basics: Beat butter and caster sugar until pale and fluffy.
Add eggs gradually: Mix one egg at a time to avoid curdling.
Stir in flavours: Fold in lemon zest and ginger.
Add dry ingredients: Sift flour and baking powder into the mixture, folding gently.
Adjust consistency: Add a splash of milk if the batter seems thick.
Spread the batter: Pour into the lined tray and level the top.
Bake: Cook until golden and springy to the touch.
Cool completely: Set the tray on a rack before icing.
Mix icing: Stir lemon juice into icing sugar until smooth.
Finish the bake: Drizzle or spread icing over the cooled cake, then slice into squares.