Mary Berry Vanilla Tray Bake is a light, tender vanilla sponge baked in a rectangular tray and finished with a sweet icing. The cake cuts neatly into squares, making it ideal for parties, gatherings, lunch boxes, and sharing with family and friends.
Self-raising flour – 225g
Baking powder – 2 teaspoons
Softened butter – 225g
Caster sugar – 225g
Eggs – 4 large
Vanilla extract – 2 teaspoons
Milk – 2 tablespoons
Icing sugar – 250g
Vanilla extract – 1 teaspoon
Water or milk – 2–3 tablespoons (adjust as needed)
Sprinkles (optional) – 2–3 tablespoons for topping
Line your tray bake tin with parchment paper and lightly grease the edges so the cake releases easily.
Set your oven to 160°C (fan) or 180°C (conventional), giving it enough time to reach the right temperature.
Place flour, sugar, butter, eggs, baking powder, vanilla, and milk into a large mixing bowl and beat until smooth and fluffy.
Pour the mixture into the lined tin and level the top gently with a spatula to ensure even baking.
Bake for 25–30 minutes or until golden and a skewer inserted into the centre comes out clean.
Allow the cake to cool in the tin before icing to avoid melting the topping.
Mix icing sugar, vanilla, and water/milk until smooth and spreadable.
Spread the icing across the cooled sponge and finish with sprinkles if desired.
Let it set before slicing into neat squares.