Courgette, broad bean and pea quiches recipe

Ingredients

• 200 g plain flour, plus extra for dusting
• 100 g unsalted butter, cut into pieces, plus extra for greasing
• 1 egg yolk
• 40 g Parmesan cheese, grated
• 1 pinch salt and freshly ground black pepper
• 1 cup milk, if needed
• 675 g fresh young broad beans, shelled, or 225g frozen broad beans
• 400 g fresh peas, shelled, or 125g frozen peas
• 200 g courgettes, cut into 1cm cubes
• 6 egg yolks
• 150 ml double cream
• 1 tbsp chopped mint
• 1 pinch grated nutmeg