Mary Berry Coconut Traybake is a classic British sheet cake made with a tender vanilla sponge, iced while slightly warm, and finished with a thick layer of desiccated coconut. It cuts neatly into squares and holds its shape well, making it perfect for sharing and transporting.
225g self-raising flour
225g caster sugar
225g softened butter
4 large eggs
2 tsp baking powder
2 tsp vanilla extract
2 tbsp milk
250g icing sugar
2–3 tbsp warm water
1 tsp vanilla extract
75–100g desiccated coconut
Line your traybake tin with baking parchment, then lightly grease it to help the sponge release smoothly after baking.
Set your oven to 160°C (fan) or 180°C (conventional) so the temperature is stable when the batter goes in.
Add flour, caster sugar, butter, eggs, baking powder, vanilla extract, and milk to a large mixing bowl. Beat until the mixture becomes smooth, creamy, and pale.
Pour the batter into the lined tin and gently level the surface using a spatula to ensure an even rise.
Bake for 25–30 minutes, or until golden and a skewer inserted in the centre comes out clean.
Mix icing sugar, warm water, and vanilla extract until smooth and pourable but thick enough to coat the cake.
Spread the icing over the still-warm sponge so it absorbs slightly and sets beautifully.
Sprinkle the desiccated coconut generously over the icing and press lightly so it adheres well.
Allow the traybake to cool completely before cutting into neat squares.
Find it online: https://maryberrycooks.co.uk/mary-berry-coconut-traybake/