Mix milk and eggs with fork in a large bowl (if you have an immersion hand blender you'll get better consistency).

Add in the vanilla, salt, cinnamon, and brown sugar.

Break apart the bread into about 1/2" pieces.

Add bread and raisins into liquid mixture, stir and let sit for 5 minutes.

Pour into a loaf pan and bake in large pan of water at 350 degrees for 60 minutes or until knife comes out clean.