Grandmama Hall’s Coca Cola Cake

Coca Cola Cake

Grandmama Hall’s Coca Cola Cake . . .

When I was a child, Grandmama Hall would make her Coca Cola Cake for us for our after-school treats. It was such a wonderful surprise to go to her house and find these moist, chocolatey squares wrapped in waxed paper. We, her grandchildren, thought this was the absolutely best treat she would make for us. And, even today, it is one of the best chocolate cakes you will ever eat!

So, I decided to make it as a birthday cake for Candace on her birthday last week, March 13th. And, since Trey’s birthday was on March 3rd, both of them came over to eat some of the cake! (I sent Jason’s piece home with him Thursday, since he wasn’t here with the other two.)

About Grandmama Hall’s Coca Cola Cake . . .

While Grandmama Hall’s Coca Cola Cake recipe dates back to the 1960’s, it is still a favorite today with our family.  It is similar to her Chocolate Sheet Cake, with the exception of a few ingredients, primarily the miniature marshmallows and Coca Cola.  These two ingredients, I think, make this cake stand out from all the others.

Although I’ve always used Coca Cola when making this cake, just because that is what the recipe calls for, you might want to be adventurous and try a different cola drink.

Making Grandmama Hall’s Coca Cola Cake . . .

When I made this cake, I baked it in a  9×13-inch baking pan. But, both Grandmama Hall and Mama baked theirs in a sheet pan. When you bake it in a sheet pan, the pieces are about 1-inch tall, more like a frosted brownie:) One thing to note is that I had to bake my cake longer because of using the smaller pan. You decide whether you want taller pieces of cake or the shorter, brownie type. Just keep the baking time in mind if you use the smaller pan.

The first step in making Grandmama Hall’s Coca Cola Cake is to mix all the ingredients together, which includes the miniature marshmallows. Then, pour the batter into a sheet pan that has been sprayed with non-stick cooking spray.

Coca Cola Cake

While the cake is baking, you make the frosting because you will frost the cake when it comes out of the oven. The cake will be hot, but the frosting will spread nicely.

Coca Cola Cake

The last step for me was to add chopped pecans to 1/2 of the cake. Some of my family like pecans, others do not, so I can make everyone happy this way. You can, of course, add the pecans into the frosting before you put it on the cake, if everyone likes pecans.

Coca Cola Cake

As you can see from the picture below, Candace likes her cake WITHOUT pecans:) But Lynn, on the other hand, likes his WITH pecans . . . he likes EVERYTHING with pecans! LOL!

Would you like your Coca Cola Cake with or without pecans?

Coca Cola Cake

Grandmama Hall’s Coca Cola Cake Recipe

Grandmama Hall would always leave “treats” in her kitchen door for the grandchildren after school. Often the “treats” were pieces of this cake.


  • 2 cups unsifted flour
  • 2 cups sugar
  • 2 sticks oleo or butter
  • 3 tablespoons cocoa
  • 1 cup cola soft drink (She used Coca-Cola)
  • ½ cup buttermilk
  • 2 beaten eggs
  • 1 teaspoon soda
  • 1 teaspoon vanilla
  • 1 ½ cups miniature marshmallows


  1. Preheat oven to 350 degrees.
  2. Combine flour and sugar in a large mixing bowl.
  3. In a medium saucepan, heat butter, cocoa, and cola to boiling and pour over flour-sugar mixture, mixing thoroughly.
  4. Mix soda in with buttermilk and set aside.
  5. Add buttermilk mixture, eggs, vanilla, and marshmallows, beating together. Mix well.
  6. Pour batter (which will be thin) with marshmallows floating on top into a 11x15x1-inch cake pan and bake for 30-35 minutes.
  7. When done, ice while hot.

Chocolate Cola Cake Icing Recipe


  • ½ cup butter
  • 3 tablespoons cocoa
  • 6 tablespoons cola (remainder of a king size bottle)
  • 1 box powdered sugar (Mama said to sift first)
  • 1 cup chopped pecans, toasted


  1. In a small saucepan, combine butter, cocoa and cola and heat to boiling. Boil 2 minutes. (Butter will separate.)
  2. Pour over confectioner’s sugar.
  3. After beating well, add pecans.
  4. Ice cake while hot.

NOTE: I think Grandmama Hall said to make the frosting a little before the cake comes out of the oven. Other recipes indicate to make the frosting after the cake is done. I made mine the last 10 minutes of baking time, but I really don’t think it makes much difference.


  1. I see you have a male in your family named Lynn too! I am researching this recipe for my son “Lyn” who is entering a youth baking contest this weekend. 🙂 Thanks for sharing.

    • Maribeth says:

      Great Diana! I’m glad you are researching my Grandmama Hall’s recipe. Sorry I am just getting back to you. My oldest son had an accident, surgery, and I have not been hope since Monday:) Let me know how you son, Lyn, does in the youth baking contest!

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