Creating Pumpkin Cinnamon Roll Muffins can be an enjoyable experience. Follow these steps for mouthwatering results:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C). Line a muffin tin with paper liners or grease it well.

2. Prepare Dry Ingredients: In a large mixing bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, and salt. Set aside.

3. Mix Sugars: In another bowl, combine the granulated sugar and brown sugar. Mix until well combined.

4. Combine Wet Ingredients: To the sugar mixture, add the pumpkin puree, vegetable oil, eggs, and vanilla extract. Mix until the ingredients are smooth and well-blended.

5. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients. Stir until just combined, being careful not to overmix.

6. Prepare Cinnamon-Sugar Filling: In a small bowl, mix the ½ cup of sugar with 1 tablespoon of cinnamon.

7. Assemble Muffins: Fill each muffin cup about halfway with the batter. Sprinkle a generous amount of the cinnamon-sugar filling over each. Add another layer of muffin batter to fill the cups about ¾ full.

8. Add More Filling: Sprinkle a little more cinnamon-sugar mixture on top of each muffin for an extra burst of flavor.

9. Bake Muffins: Place the muffin tin in the preheated oven and bake for 20-25 minutes, or until a toothpick inserted in the center comes out clean.

10. Cool Muffins: Once baked, remove the muffins from the oven and allow them to cool in the pan for 5-10 minutes before transferring them to a cooling rack.