Coconut Pie

Pastry

• 250 g plain flour, plus extra for dusting
• 125 g unsalted butter, cold, diced
• 2 Tbsp desiccated coconut
• 4 Tbsp water, ice cold

Filling

• 125 g unsalted butter, diced
• 150 g desiccated coconut
• 350 g caster sugar
• 150 g buttermilk
• 5 large eggs
• 1 tsp vanilla extract
• whipped cream, for serving