Step 1

Grease a 9×13 inch pan with butter or spray with nonstick spray. Slice then cut the bread into cubes, about 1 inch in size. Spread cubes into the prepared baking pan and top evenly with blueberries. Set aside.

Step 2

Whisk the eggs, milk, cinnamon, brown sugar, and vanilla together until no brown sugar lumps remain. Pour over the bread. Cover the pan tightly with plastic wrap and stick in the refrigerator for 3 hours – overnight. Overnight is best.

Step 3

Preheat oven to 350°F (177°C). Remove pan from the refrigerator.

Step 4

Whisk the brown sugar, flour, and cinnamon together in a medium bowl. Cut in the cubed butter with a pastry blender or two forks. Sprinkle the topping over the soaked bread.

Step 5

Bake for 45-55 minutes or until golden brown on top. I usually bake it for 45 minutes because I like it softer. Serve immediately. Cover leftovers tightly and store in the refrigerator for 2-3 days.