Dulce de Leche Cream Pie with Pecan-Graham Crumble

Bahan-bahan (8 porsi)

• 2 (14-oz) cans sweetened condensed milk*
• 1/2 teaspoon flaked sea salt (fleur de sel)
• 2 & 1/4 cups graham cracker crumbs**
• 2 tablespoons sugar
• 1/4 teaspoon salt (any kind)
• 7 tablespoons butter (melted)
• 6 full sheets graham cracker
• 3/4 cup pecans
• 1/4 cup butter (melted (half stick))
• 2 cups heavy cream (very cold)
• 2 -4 tablespoons powdered sugar
• 1 & 1/2 teaspoons vanilla
• more dulce de leche (to drizzle* (or salted caramel topping), optional)