Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C). Grease an 8x8-inch baking pan.
2
Line the bottom of the prepared pan with bread cubes.
3
Beat milk, eggs, 2 tablespoons sugar, salt, and vanilla together in a large bowl until well combined; pour over bread cubes and stir to coat. Dot with butter; let stand for 15 minutes.
