Leave the bread in the provided pan. Cut King's Hawaiian® Sweet Round Bread into strips and then cubes with a bread knife.

In a large bowl, whisk eggs, milk, cinnamon, salt, vanilla, sugar, and flour in a bowl.

Pour egg mixture slowly over bread making sure to separate each piece to cover all of the bread.

Stick blueberries between the cubes of bread.

Refrigerate for 2 hours or overnight.

Preheat oven to 350 degrees.

Cut 1/4 cups of cold butter into pieces and place in a bowl.

Add flour, brown sugar, cinnamon, and salt and use a pastry knife or a fork to combine. It should be clumpy.

Sprinkle the mixture over the top of the loaf making sure to get some in between the slices.

Cover with aluminum foil and bake for 20 minutes.

Uncover and bake for an additional 20-30 minutes. Stick a butter knife into the center, if it comes out clean it is done. If not continue baking.