Heat oven to 350 degrees F. Grease bottom of 13 x 9-inch pan. Prepare brownies as directed on package with oil, water and eggs. Stir in raisins. Spread in greased pan. Sprinkle nuts on top. Press in lightly. Bake at 350 degrees F for 28 to 30 minutes. Cool completely.

Combine melted vanilla chips and oil. Drizzle over cooled brownies. Cut into squares while frosting is still slightly soft.

Photo and Recipe Courtesy of The California Raisin Marketing Board.