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Black Walnut Sheet Cake

Black Walnut

Walnuts are technically not a true nut. They are the seed of the drupe, a fleshy fruit with a harder seed in its interior. Of all foods, they are the second highest in antioxidants. They are rich in protein, copper, folic acid, B6 and vitamin E and have been shown to aid in preventing cancer, heart disease and reducing inflammation.

RECIPE:  Black Walnut Sheet Cake

  • Prep Time:  10 minutes
  • Cook Time: 15 min
  • Yield:  1 baking sheet pan with edges
  • Difficulty Level:  Intermediate

A perfect size for a crowd or a hungry family. This warm chocolaty delight is the perfect thing to stave off the snow and cold. 

Recipe & image courtesy of Hammons Black Walnuts.


2 cups sugar

2 cups flour

1 teaspoon soda

1 teaspoon of salt

2 sticks margarine

4 tablespoon cocoa powder

1 cup water

1/2 cup buttermilk

2 eggs, room temperature


1 stick (1/2 cup) butter,

6 tablespoon buttermilk

1 cup Hammons Black Walnuts

4 tablespoon cocoa

1 lb. powdered sugar


1) Cake:

2) Preheat oven to 350*, spray cookie pan, set aside.

3) Sift sugar, flour, baking soda and salt into medium bowl.

4) Melt margarine and mix with cocoa and water. Bring to a rapid boil and pour over dry ingredients, lightly combine.

5) Mix in buttermilk and eggs, stir until completely combined.

6) Pour cake batter into prepared baking pan.

7) Bake for 15 – 20 minutes.

8) Icing:

9) Melt butter in a saucepan.

10) Add cocoa and buttermilk, continue stirring.

11) Bring to a boil and add powdered sugar and black walnuts. Spread while cake is hot.

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Nothing says Home like the smell of baking

Acknowledgement:  Home Baking Association
Cottage Core Home would like to thank and acknowledge The Home Baking Association (HBA) for being a valuable resource who supports home baking