Whisk eggs, sugar, and maple syrup together. Add pumpkin puree, evaporated milk, and vanilla, and mix well. Finally, sift in flour, pumpkin spice, and salt, and whisk until only just incorporated.
2 large eggs, ¾ cup light brown sugar, ¼ cup maple syrup, 1¾ cups pumpkin puree, ½ cup evaporated milk, 1 teaspoon vanilla extract, ¼ cup all-purpose flour, 2 teaspoon pumpkin pie spice, ¼ teaspoon salt