Toblerone Chocolate Chunk Brownies

Preheat the oven to 180°C, gas mark 4. Line a 20cm square cake tin with baking parchment. Melt the chocolate and butter together in a small saucepan set over a low heat. Stir to combine, then set aside to cool for 5 minutes.

In a large mixing bowl, use a balloon whisk to gently whisk the eggs and sugar together. Whisk in the chocolate-butter mixture and vanilla, followed by the flour and salt, until just combined, then tip into the cake tin.

Break the Toblerone into chunks and arrange over the mixture. Bake for 30 minutes until set on top. Allow to cool in the tin before cutting into 12 pieces.