Apple, Parmesan & Mustard Seed Pie – Sophie Zalokar

Ingredients

• 1 ¼ cups plain flour
• 120 g cold unsalted butter, diced
• ½ tsp salt
• ¼ cup plain yoghurt
• ¼ cup sour cream
• 1 tbsp grainy mustard
• ½ cup Parmesan, finely grated
• 2 Granny Smith apples
• 1 tsp brown mustard seeds
• 1 tbsp chives, finely chopped
• 1 tbsp fresh dill tips
• freshly cracked black pepper