In large bowl, mix granulated sugar, cinnamon, salt and eggs with wire whisk until well blended. Stir in bread cubes and raisins. Stir in milk mixture. Pour into ungreased 8-inch square (2-quart) glass baking dish or 1 1/2-quart casserole. Place casserole in 13x9-inch pan; pour boiling water into pan until 1 inch deep.