01 -
Preheat the oven to 350°F and spray an 18x13x1 inch sheet pan with baking spray.
02 -
In a medium bowl, whisk together the flour, baking soda, pumpkin pie spice, cinnamon, salt, and nutmeg until evenly combined.
03 -
In a large bowl, whisk together the pumpkin puree, light brown sugar, granulated sugar, vegetable oil, eggs, and vanilla extract until the mixture is smooth.
04 -
Fold the dry ingredient mixture into the wet ingredients until no dry patches remain and the batter is uniform.
05 -
Pour batter into the prepared pan, smooth the surface, and bake for 18 to 20 minutes until a toothpick inserted into the center comes out clean. Allow to cool slightly.
06 -
In a small saucepan over medium-low heat, melt the butter. Whisk in the dark brown sugar and heavy cream, stirring constantly until the mixture reaches a rolling boil. Remove from heat.
07 -
Gradually whisk in the powdered sugar until fully combined, then whisk in the bourbon and vanilla extract.
08 -
Stir in the toasted chopped pecans and salt to the icing mixture.
09 -
Slowly pour the praline icing evenly over the cake surface to the edges. Spread gently with a spatula if needed. Allow icing to set for approximately 1 hour before slicing and serving.