Cut French bread into 1-inch cubes and place in a large bowl.

Core and peel apple and cut into bite-size pieces. Add to French bread.

Add pecans to French bread and apples.

In a medium-sized bowl, combine eggs, milk, and apple pie spice. Whisk to combine.

Add brown sugar to egg mixture and stir well.

Pour egg mixture over bread mixture and stir well.

Lightly spray a 6-quart slow cooker with cooking spray.

Transfer bread mixture to slow cooker.

Cover the slow cooker with 6-8 layers of paper towels.

Put the lid on the slow cooker (over the paper towels) and cook on high for 2.5-3 hours. French toast is done when it is set in the middle, and a toothpick or knife inserted into the center comes out clean.

Serve immediately.