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Mary Berry Blondies

Mary Berry Blondies

Mary Berry Blondies are vanilla-based traybake squares made without cocoa powder. Instead of chocolate flavour, they rely on butter, brown sugar, and vanilla to create a warm, toffee-like taste. The texture is moist and slightly fudgy rather than cakey, making them easy to slice and ideal for sharing.

Ingredients

  • Unsalted butter: 175 g, melted and cooled slightly

  • Light brown sugar: 200 g

  • Eggs: 2 large

  • Vanilla extract: 2 teaspoons

  • Plain flour: 175 g

  • Baking powder: 1 teaspoon

  • Salt: a pinch

(Optional additions: white chocolate chips, milk chocolate chunks, or chopped nuts)

Instructions

  • Prepare the tin – Line the baking tin with parchment and preheat the oven to 180°C (160°C fan).

  • Mix butter and sugar – Combine the melted butter and brown sugar until smooth and glossy.

  • Add the eggs – Beat in the eggs one at a time, mixing well after each addition.

  • Add vanilla – Stir in the vanilla extract for flavour depth.

  • Fold in dry ingredients – Add the flour, baking powder, and salt, folding gently until just combined.

  • Add extras (optional) – Fold in chocolate chips or nuts if using.

  • Bake until set – Pour the mixture into the tin and bake for 22–25 minutes, until lightly golden with a slight wobble in the centre.

  • Cool before slicing – Allow to cool fully in the tin so the blondies set properly.