01 - 
                Preheat oven to 375°F (190°C). Line 18 muffin cups with paper liners or grease with cooking spray.
              
              
              
                02 - 
                In a large mixing bowl, whisk together flour, pumpkin pie spice, baking soda, and salt until evenly combined.
              
              
              
                03 - 
                In the bowl of a stand mixer fitted with paddle attachment, beat pumpkin puree, 1 cup granulated sugar, and brown sugar until well combined.
              
              
              
                04 - 
                Beat in eggs, canola oil, and 1 tablespoon vanilla extract until mixture is smooth and fully incorporated.
              
              
              
                05 - 
                Add flour mixture in batches to pumpkin mixture, beating on low speed after each addition until just combined and no streaks of flour remain.
              
              
              
                06 - 
                Using a muffin scoop or large spoon, divide batter evenly among prepared muffin cups, filling each about 3/4 full.
              
              
              
                07 - 
                In clean mixer bowl, beat softened cream cheese until smooth and fluffy. Add remaining 1/4 cup sugar, egg yolk, and 2 teaspoons vanilla extract, beating until completely smooth.
              
              
              
                08 - 
                Spoon 1 tablespoon of cream cheese mixture on top of each muffin. Using a butter knife, gently swirl cream cheese into batter to create marbled effect.
              
              
              
                09 - 
                Bake for 18-20 minutes, or until centers are set and tops are lightly golden. Test doneness by gently shaking pan - centers should not jiggle.
              
              
              
                10 - 
                Remove from oven and let cool in pans for 5 minutes before transferring to wire rack. Serve warm or at room temperature.