Cut the slightly stale bread into 1" cubes then transfer them to a 9x13" baking dish that's been sprayed with nonstick cooking spray. Spread the bread out in an even layer then sprinkle the raisins evenly overtop.
1 large stale French bread loaf, 1/4 cup raisins
To a large mixing bowl add the pumpkin, eggs, sugar, cinnamon, pie spice, and extract. Stir together until evenly combined. Slowly pour in the milk and then stir again until evenly combined and smooth.
1 15 oz can pumpkin puree, 1 packed cup brown sugar, 2 large eggs, 1 1/2 tsp pumpkin pie spice, 1 1/2 tsp ground cinnamon, 1 1/2 tsp vanilla extract, 2 cups 2% milk
Pour the liquid pumpkin mixture evenly out overtop of the bread and spread out in an even layer. Set aside and let the mixture rest for 15-20 minutes.
Bake at 350° for 40-45 minutes, just until the mixture's set. If you're unsure test it by inserting a toothpick in the center, if it comes out clean it's done.
Carefully remove the hot dish from the oven and let the dish rest for 5 minutes.
Slice, serve warm, and enjoy!