Fast As Lightning Mississippi Mud Cake

READY IN: 50mins
Recipe by Sharon123

A really quick recipe that gives good results! Adapted from Southern Living magazine.

Top Review by Luv2CookHate2Clean

Dh LOVES Mississippi Mud Cookies, so he requested a cake like that for his b-day. I didn't have much time to do the more involved recipes I found, but this one seemed like a good sub. He wasn't crazy about the marshmallow topping, but the rest of us loved it. I only used one box of brownies and put it in a 9x13 pan. I also melted the frosting in the microwave for a minute or so, to make it easier to drizzle. The boys and I snacked on it all weekend, so it was definitely a keeper for us. :-)

Ingredients Nutrition

  • 236.59 ml chopped pecans
  • 2 (999.32 g) package fudge brownie mix
  • 2 large eggs (or as directed on pkg.)
  • 118.29 ml vegetable oil (or as directed on pkg.)
  • 59.14 ml water (or as directed on pkg.)
  • 297.66 g bag miniature marshmallows
  • chocolate frosting (store bought or homemade)


  1. Place the pecans in a single layer on a baking sheet.
  2. Bake at 350° for 8-10 minutes or until toasted.
  3. Prepare mix according to the package directions using eggs, vegetable oil, and water; pour into a greased 15x10 x 1-inch jelly-roll pan.
  4. Bake at 350° for 25 minutes. Remove from oven, and top with marshmallows; bake 8 to 10 more minutes.
  5. Drizzle warm cake with Chocolate Frosting, and sprinkle evenly with toasted pecans. Enjoy!

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