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, baking soda, cinnamon, and salt until well combined; this helps distribute the spices evenly through the batter.
In a separate bowl, stir together the granulated sugar, brown sugar, and vegetable oil until the mixture is smooth and slightly fluffy, releasing a sweet aroma.
Add the eggs one at a time to the wet mixture, whisking well after each addition to incorporate air and ensure a smooth, shiny batter.
Pour in the pumpkin puree and gently fold it into the wet ingredients until fully integrated, giving the batter an orange hue and a moist texture.
Gradually add the dry ingredients to the wet mixture, using a spatula or spoon to fold everything together until just combined. Be careful not to overmix, as this can make the muffins dense.
Gently fold in the chocolate chips evenly throughout the batter, ensuring a few are visible on the top as well.
Spoon the batter into the prepared muffin cups, filling each about 3/4 full for best rising and shape.
Bake in the preheated oven for 18–20 minutes, or until the muffins are golden brown and a toothpick inserted into the center comes out clean.
Remove the muffins from the oven and let them cool in the tin for about 5 minutes before transferring to a wire rack to cool completely.
Once cooled slightly, these muffins are ready to serve—warm, fragrant, with pockets of melty chocolate perfection.
