I begin by cutting my bread into 1-inch cubes. Then, I arrange half of the bread in a 9×13 baking dish sprayed with nonstick cooking spray or buttered well.
Add half of the blueberries to the bread cubes and then repeat the layering with the remainder of the bread cubes and blueberries.
Whisk together the milk, eggs, honey (or maple syrup), vanilla, cinnamon, and salt. Pour over the bread and blueberries.
Then, mix the flour, brown sugar, cinnamon, and butter until well combined and crumble over the top.
Pop into the oven and bake until set and golden brown, about 40 minutes.