Mary Berry Butterscotch Traybake is a simple one-pan cake featuring a moist vanilla-butterscotch sponge and a smooth icing made from brown sugar and butter. The cake bakes evenly in a rectangular tin, making it easy to slice and share. With a balance of sweetness and warmth, it captures the essence of traditional British baking—simple, flavourful, and comforting.
225g self-raising flour
225g soft butter
225g light brown sugar
4 large eggs
1 teaspoon baking powder
1 teaspoon vanilla extract
75g butter
100g light brown sugar
3 tablespoons milk
150g icing sugar, sifted
½ teaspoon vanilla extract (optional)
Prepare the tray – Line a traybake tin with parchment and preheat the oven to 180°C (350°F).
Start the sponge mixture – Beat 225g butter and 225g light brown sugar until pale and creamy.
Add the eggs – Mix in the 4 eggs, one at a time, beating well after each.
Incorporate dry ingredients – Fold in 225g self-raising flour, baking powder, and vanilla extract until smooth.
Transfer and level – Pour the batter into the lined tin and spread evenly with a spatula.
Bake the sponge – Bake for 25–30 minutes, or until golden and springy to the touch.
Cool the cake – Allow the traybake to cool completely before icing.
Prepare the butterscotch icing – Heat 75g butter, 100g brown sugar, and milk until melted; simmer gently for 1 minute.
Finish the icing – Remove from heat, whisk in icing sugar and vanilla until smooth.
Spread the icing – Pour over the cooled cake and spread quickly before it sets.
Slice and serve – Let the icing firm up, then cut into squares.
Find it online: https://maryberrycooks.co.uk/mary-berry-butterscotch-traybake/