Prue Leith's Sablé Breton recipe - The Great British Bake Off

Ingredients

• 170g plain flour
• 1 tsp baking powder
• ¼ tsp fleur de sel
• 125g unsalted butter, at room temperature, cubed
• 4 egg yolks
• 100g caster sugar
• 1 egg white
• 60g caster sugar
• pinch of salt
• 350g raspberries
• 120g jam sugar
• 2g pectin
• 90g 54% dark chocolate, chopped into pieces
• 75g pistachios
• 2 tsp pistachio oil
• 10 drops pistachio extract
• 250ml whole milk
• ½ vanilla pod, split lengthways and seeds scraped out
• 50g caster sugar
• 35g plain flour, sifted
• 100g unsalted butter, at room temperature, cubed
• 30 strawberries, hulled and halved
• 10 raspberries
• 2 sheets of gold leaf