Cube brioche loaf into bite size pieces and place in a 13 x 9 inch casserole dish sprayed with cooking spray.
Sprinkle bread cubes with raisins and pecans.
In a separate bowl, whisk pure pumpkin, brown sugar, pumpkin pie spice, eggs, evaporated milk, heavy cream and vanilla extract together until smooth.
Pour pumpkin mixture over bread in casserole dish. Cover all pieces of bread and let it sit for 10 minutes to absorb the custard.
Bake at 350 degrees for 40 to 45 minutes until middle is set.
Cool bread pudding for 10 minutes before cutting into 8 squares. Serve with a drizzle of maple syrup and pumpkin spice whipped cream.
PUMPKIN SPICE WHIPPED CREAM
With a mixer, beat heavy cream until peaks form.
Add powdered sugar, vanilla extract and pumpkin pie spice.
Pipe onto bread pudding.
Notes
Use brioche bread that is at least a day old. Since it has a high butter content, brioche is more dense and can stand up to the weight of the cream. Using another type might not yield the same results.
Check the pudding after 40 minutes to make sure it's not over baked. It should be golden brown with a slight jiggle in the middle. If it starts to crack, it may be cooked too long.
Make this dish up to a day ahead and keep in the refrigerator until ready to bake.