01 - Preheat oven to 375°F. Line a standard 12-cup muffin tin with paper liners or grease thoroughly.
02 - Whisk together eggs, brewed sweet tea, pumpkin purée, vegetable oil, and vanilla extract in a large mixing bowl until the mixture is fully blended and smooth.
03 - In a separate bowl, stir together flour, granulated sugar, light brown sugar, baking powder, baking soda, salt, and pumpkin pie spice until well distributed.
04 - Gently fold the dry mix into the wet mixture with a spatula, combining just until a few lumps remain. Take care not to overmix.
05 - Portion the batter evenly into the prepared muffin cups. Sprinkle the tops with coarse sugar if preferred.
06 - Bake for 18 to 22 minutes or until a toothpick inserted into the center of a muffin emerges clean.
07 - Allow muffins to rest in the pan for 5 minutes before transferring to a wire rack to cool completely.