In a large mixing bowl add 15 ounces canned pumpkin purée, ½ cup granulated cane sugar, 2 ½ teaspoons ground cinnamon, 1 teaspoon ground ginger, ½ teaspoon ground allspice, ¼ teaspoon ground nutmeg, and ¼ teaspoon sea salt. Stir until well combined.
Add 2 large eggs and stir well to combine.
Add ¾ cup half and half and mix until smooth and well combined.
Pour into the prepared crust. Bake at 350° for 55-65 minutes or until the center is set. You can also poke the center with a butter knife, if it comes out clean it is done. Let cool completely before serving for optimal flavor.