Preheat your oven to 375°F (190°C) and line a muffin tin with paper liners or lightly grease it.
In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, spices, salt, and chopped Earl Grey tea leaves until well combined.
In a separate bowl, beat the eggs, then stir in the pumpkin puree and vegetable oil until smooth and homogeneous.
Pour the wet mixture into the dry ingredients, gently folding them together with a spatula until just combined. Do not overmix to keep the muffins tender.
Spoon the batter evenly into the prepared muffin cups, filling each about three-quarters full.
Bake in the preheated oven for 20 minutes, or until the muffins are golden on top and a toothpick inserted into the center comes out clean.
Remove the muffins from the oven and let them cool in the tin for a few minutes before transferring to a wire rack to cool completely.
Once cooled, enjoy these muffins with a hot cup of tea or a splash of butter for a cozy treat.