Place half the bread cubes in each of 2 individual casseroles.
Combine milk, eggs, prune juice, vanilla, and salt in a medium bowl.
Divide evenly and pour over bread.
Top each casserole with 1/2 of the diced prunes.
Sprinkle with cinnamon.
Bake at 350°F.
about 45 minutes or until pudding is brown and knife inserted near center comes out clean.