Pumpkin-ish Pie (Bill Yosses)

Pie Crust

• 12 oz all-purpose flour, plus extra to dust
• ½ oz sugar
• ½ tsp salt
• 12 oz unsalted butter, cold, cubed, plus extra to grease
• 4 oz ice cold water

Pumpkin Filling

• 1 ½ tsp ground cinnamon
• ½ tsp ground nutmeg
• 2 in. fresh ginger, peeled, cut into pieces
• 1 tsp salt
• 10 oz butternut squash, fresh or frozen, cubed
• 10 oz kabocha squash, fresh or frozen, cubed
• 8 oz coconut milk, full fat
• 6 oz maple syrup
• 4 large eggs, divided
• 1 tsp water