1 pkg. devil's food cake mix
1/2 c. cocoa
2 c. miniature marshmallows
1 c. brown sugar, packed
2 c. water
1 c. chopped pecans

Combine brown sugar, cocoa and water; mix well. Pour into 13 x 9-inch pan. Place marshmallows evenly on top. Prepare cake mix, following package directions. Pour over marshmallows. Top with pecans.

Bake at 350°F for 50 minutes.