Step 1

Heat oven to 350 degrees and spray a 9x13 baking pan with cooking spray.

Step 2

Combine all ingredients in a small bowl and using your fingers, or a pastry cutter, mix together until it resembles coarse wet sand. Set aside.

Step 3

In a large bowl add eggs, sugar, canola oil, and pumpkin. Use a handheld blender, or a stand mixer, to beat until combined.

Step 4

In a separate bowl, combine the flour, baking powder, baking soda, cinnamon pumpkin pie spice, and salt. Stir with a wire whisk to break up clumps.

Step 5

Add half of the dry ingredients into the wet and beat together. Add the other half and mix until combined.

Step 6

Pour into the prepared baking dish and sprinkled the cinnamon streusel over top.

Step 7

Cook for 30-38 minutes or until center is no longer "jiggly" and looks set. The edges will be golden brown. Let cool on a cooling rack.

Step 8

Once cooled make the glaze: beat the butter and vanilla extract until soft and creamy. Add the powdered sugar, cinnamon, and 1 tablespoon heavy cream. Keep adding heavy cream, in 1 tablespoon increments, until desired consistency is reached.

Step 9

Drizzle over the cake and serve.