Ingredients
Method
- Preheat the oven to 350°F. Grease a 9×9-inch baking pan and line it with parchment paper.
- Make the streusel by combining flour, brown sugar, pumpkin pie spice, and salt. Cut in the cold butter until crumbly. Refrigerate while preparing the batter.
- In a medium bowl, whisk together flour, baking powder, baking soda, salt, and pumpkin pie spice.
- In a large bowl, whisk together vegetable oil, granulated sugar, brown sugar, eggs, pumpkin puree, sour cream, milk, and vanilla until smooth.
- Add the dry ingredients to the pumpkin mixture and gently stir until just combined. Do not overmix.
- Spread half of the batter into the prepared pan.
- Sprinkle half of the streusel evenly over the batter.
- Carefully spread the remaining batter over the streusel layer.
- Sprinkle the remaining streusel evenly over the top.
- Bake for 35–45 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Cool the cake in the pan for 10–15 minutes, then transfer to a cooling rack.
- For the glaze, whisk powdered sugar, maple syrup, vanilla, and enough milk to create a smooth drizzle.
- Drizzle the glaze over the cooled cake.
- Slice into squares and serve.
Notes
Use 100% pumpkin puree, not pumpkin pie filling.
Keep the butter cold when making the streusel for the best crumbly texture.
Don't overmix the cake batter.
Spoon and level flour when measuring to prevent a dry cake.
If the top browns too quickly, loosely cover with foil during the final baking time.
Allow the cake to cool slightly before adding the glaze.
