1 pkg. Duncan Hines deluxe devil's food cake mix
1 c. water
1 c. chocolate syrup
2 c. mini marshmallows
1/2 c. chopped walnuts

Preheat oven to 350 degrees. Combine water and chocolate syrup. Pour into 13 x 9 x 2 inch pan. Sprinkle marshmallows and walnuts over top. Prepare cake as directed on package. Carefully pour over mixture in pan. Bake 45 to 50 minutes.