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Home › Recipes
16 Comments

Chocolate Buttermilk Sheet Cake

Stacey Pirtle

by Stacey Updated: Feb 9, 2023

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This post may contain affiliate links.


If you like chocolate, I mean really like chocolate, then this Buttermilk Chocolate Sheet Cake is your cake.  

It is not for the faint-hearted or the casual chocolate consumer.  This cake is hide-in-your-closet-and-eat-by-yourself good.  This Buttermilk Chocolate Sheet cake is one of those cakes when you take the first bite, you just have to close your eyes to revel in what simply might be the best thing you have ever decided to put in your mouth.  Involuntary oohs and aahs could quite possibly escape from your lips.

Sigh…  Yes… it’s that good.

Normally, I am not a huge fan of sheet cakes.  I really like layered cakes for a number of reasons that have nothing to do with anything but my own quirks.  However, The Engineer, being from Texas and always claiming things being far superior there, loves Texas Sheath cake.  So this sent me on a hunt, a hunt for a recipe that I could call my own.

I have had Texas Sheath cake before, having lived in Texas myself for 13 years and being married to a Texan and all.  I’ll admit that it is quite good and even goes by many names– Texas Brownie Cake, Texas Sheet Cake, Brownie Sheet Cake, Mexican Chocolate Cake, Chocolate Brownie Cake, Texas Ranch Cake, and the list goes on and on.  “Sheath” is sometimes referenced in the name because the icing goes on warm and sheaths, or envelopes, the cake.  (Maybe we should just pause right there for a few reverential minutes… warm icing enveloping chocolate cake!!)

The cake is usually made in a large jelly roll pan or baking sheet, and while it is quite large, it is only about 1 inch thick.  It is rumored that Lady Bird Johnson had a hand in creating and/or naming this cake, but that claim can’t be substantiated any more than Texas’ claim to it being a “Texas cake.”  Who knows where this cake came from or where it got its name (You can read more about its history here. It’s really quite interesting.).  All we really know is that it is good cake, really, really good cake.

The Chocolate Buttermilk Sheet Cake recipe below is the result of a long and arduous search for the perfect “Texas” sheet cake– that heavenly mixture of single layer melt in your mouth cake that does not dry out, covered in rich chocolate-y fabulousness.  Be forewarned though. There is nothing about this that says “diet.”   It’s gorgeous, rich cake, for crying out loud, not spinach salad.

So after much research and taste testing (It’s a tough job, but somebody’s got to do it), here is a velvety, rich cake that would hold a solid place of respectability at any gathering in Texas… or anywhere around the South… or simply in your closet while you eat alone.   I won’t tell.


Chocolate Buttermilk Sheet Cake

This post contains affiliate links.  I earn a small commission (at no cost to you) if any purchases are made when you click through those links, even if what you purchase isn’t the ASD pick.  That commission is an essential part of what keeps A Southern Discourse up and running.  Thank you so much for being a part of ASD!

Ingredients

CAKE:

  • 2 C Flour
  • 2 C Sugar
  • ¼ teaspoon Salt
  • 4-5 tablespoon Cocoa, heaping
  • 2 sticks Butter
  • 1 C Hot to Boiling Water
  • ½ C Buttermilk
  • 2 Eggs, beaten
  • 1 teaspoon Baking Soda
  • 1 teaspoon Vanilla

FROSTING:

  • 1-¾ stick Butter
  • 5 tablespoon Cocoa (not heaping)
  • 5 tablespoon Buttermilk
  • 1 teaspoon Vanilla
  • 1 lb. Powdered Sugar (minus ½ C)
  • ¼ teaspoon cinnamon
  • 1 C chopped pecans (optional)

Preparation

Note: I use a lightly greased 18 x 13 cake pan to make this cake instead of a jelly roll pan.  This Nordic Ware pan is perfect because it has a lid. I don’t know what I would do without the lid! It comes in so handy when I take this cake to family or church gatherings.  Not to mention, with this pan, my cakes always cook evenly and never stick.  I love it!

Products I Use To Make This Recipe

 

In a mixing bowl, combine flour, sugar, and salt. Set aside.

In a saucepan, melt butter over low heat.  Add cocoa and stir.

Add hot water (I heat it in the microwave).  Allow butter, cocoa, and water to boil in saucepan for 30 seconds.

Pour over flour mixture in mixing bowl, and mix lightly to cool.

In a large measuring cup, measure the buttermilk, add beaten eggs, baking soda, and vanilla.  Stir.

Gently mix buttermilk mixture into butter/chocolate mixture.

Pour into pan and bake at 350-degrees for 20 minutes.  (Taste if you must. It’s totally worth it.)

While the cake is baking, make the icing.

Melt butter in clean saucepan over low heat.  Add cocoa and stir to combine. Then remove from heat.

Add the milk, vanilla, powdered sugar, and cinnamon. Whisk together until shiny and smooth. (This is when you get awesome forearms… well, one awesomely toned forearm.)

Pour over warm cake.  Spread with a spatula if necessary.

You can serve this while the cake is still warm and gooey, and it is sooo good.  Ice cream is pretty much a must.

Bonus! After the cake has completely cooled in the fridge, the icing sets up like fudge.

*** Pin this recipe here! ***

If you like chocolate, I mean REALLY like chocolate this is the chocolate cake for you. Dense, moist, eat-it-in-your-closet-by-yourself-good, this chocolate buttermilk recipe is one of the best I've tried. Perfect for birthdays, family gatherings, church get-togethers, or just because you want chocolate cake!

Check out this and a ton of other great Southern recipes at Foodie Friday!

 

Want more cake?  Try these ASD favorites!

Mamaw’s Fresh Apple Cake

Old Fashioned Coconut Icebox Cake

Easy Naked Mini Cakes

 

Further Reading: “The Great Sheet Cake Mystery”  by Jennifer Harbster,  Library of Congress /Inside Adams: Science, Technology, & Business

A Southern Discourse is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.

Chocolate Buttermilk Sheet Cake

A single layer of melt in your mouth cake that does not dry out, covered in a rich chocolate-y fudge.
Print Pin Rate
Author: Stacey | SouthernDiscourse.com

Ingredients

  • 2 C Flour
  • 2 C Sugar
  • ¼ teaspoon Salt
  • 4-5 tablespoon Cocoa heaping
  • 2 sticks Butter
  • 1 C Hot to Boiling Water
  • ½ C Buttermilk
  • 2 Eggs beaten
  • 1 teaspoon Baking Soda
  • 1 teaspoon Vanilla

Frosting

  • 1-¾ stick Butter
  • 5 tablespoon Cocoa not heaping
  • 5 tablespoon Buttermilk
  • 1 teaspoon Vanilla
  • 1 lb. Powdered Sugar minus ½ C
  • ¼ teaspoon cinnamon
  • 1 C chopped pecans optional
Get Recipe Ingredients

Instructions

  • Preheat oven to 350 degrees Farenheit, and lightly grease an 18 x 13 cake pan.
  • In a mixing bowl, combine flour, sugar, and salt. Set aside.
  • In a saucepan, melt butter over low heat. Add cocoa and stir.
  • Add hot water. Allow butter, cocoa, and water to boil in saucepan for 30 seconds.
  • Pour over flour mixture in mixing bowl, and mix lightly to cool.
  • In a large measuring cup, measure the buttermilk; stir in beaten eggs, baking soda, and vanilla.
  • Gently mix liquids into butter/chocolate mixture.
  • Pour into pan and bake for 20 minutes.

Frosting

  • Melt butter in saucepan over low heat. Add cocoa and stir to combine. Then remove from heat.
  • Add the milk, vanilla, powdered sugar, and cinnamon. Whisk together until shiny and smooth.
  • Pour over warm cake. Spread with a spatula if necessary.

Notes

After the cake has completely cooled in the fridge, the icing sets up like fudge.
Did you make my Chocolate Buttermilk Sheet Cake?Show me how it went! Share on Instagram, tag @southerndiscourse, and use the hashtag #SouthernDiscourse!
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This recipe was originally published October, 2014.

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Filed Under: Desserts, Recipes

Meet Stacey

Southern Discourse is a place where you can find southern family dishes, along with special recipes & table settings. Bringing connection & friendship back to the table by wrapping everything in the faith & grace from which true hospitality springs! Read More

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  1. Avatar photoanna smith

    October 3, 2014 at 7:11 am

    This cake brings back so many fond memories. Texas sheet cake was my favorite cake growing up, my mom would make me one every year for my birthday. I see this cake in my future, very soon! And by the way, if you ever need help with the tough job of taste testing, I’m always available 🙂

    Reply
    • Stacey Pirtlestacey

      October 3, 2014 at 12:15 pm

      Anna! Ha! I always need taste testers! I hope you make this cake, and it lives up to your all of your great memories. Maybe it will bring back that birthday tradition.

      Reply
  2. Avatar photoLezlie

    October 3, 2014 at 9:34 am

    I make something similar but before pouring on the icing, I poke holes all over the top. The icing then fills the holes.

    Reply
    • Stacey Pirtlestacey

      October 3, 2014 at 11:41 am

      Oh! YUM! This would make a great poke cake! What a great idea! I am going to try that next time.

      Reply
  3. Avatar photoJan LaStrapes

    October 22, 2017 at 10:59 pm

    Yum!
    Why oh why am I not eating refined sugar?
    The cake looks fabulous!

    Reply
    • Stacey Pirtlestacey

      November 1, 2017 at 10:16 pm

      Oh no! I don’t want to to tempt you to cheat… but the holidays are coming up soon… It’s always good to take a break during the holidays!

      Reply
  4. Avatar photoLara

    October 23, 2017 at 9:34 am

    Yumm!! It looks so chocolatey & fudgy delicious! Love itt!

    Reply
    • Stacey Pirtlestacey

      November 1, 2017 at 10:17 pm

      Oh, Lara! Yes! If fudgey and chocolatey is your thing, then this is your cake!

      Reply
  5. Avatar photoLuis Toro

    October 23, 2017 at 1:37 pm

    Oh!!! It looks so tasty and fabulous! Thanks for sharing, it seems to be very easy to cook. I’ll try 🙂

    Reply
    • Stacey Pirtlestacey

      November 1, 2017 at 10:18 pm

      Luis, let me know how it turns out. We just love this cake around here!

      Reply
  6. Avatar photoMiz Helen

    October 30, 2017 at 12:19 pm

    Your Chocolate Buttermilk Sheet Cake looks fabulous and I can’t wait to try the recipe! Thanks so much for sharing your post with us at Full Plate Thursday! Have a great week and come back to see us real soon!
    Miz Helen

    Reply
    • Stacey Pirtlestacey

      November 1, 2017 at 10:19 pm

      Thanks, Miz Helen! I was so glad to link up and had a great time visiting all of the other fabulous recipes that were linked up too. Thank you so much for being such a wonderful hostess!

      Reply
  7. Avatar photoMiz Helen

    November 1, 2017 at 5:54 pm

    Congratulations!
    Your post is featured on Full Plate Thursday this week and we have pinned it to our Features Board. Thanks so much for sharing with us and sure hope you enjoy your new Red Plate!
    Miz Helen

    Reply
    • Stacey Pirtlestacey

      November 1, 2017 at 10:22 pm

      Oh WOW! I am doing the happy dance right now! That is just awesome! Thank you so much for hosting Full Plate Thursday!! It is such a wonderful place find delicious homestyle recipes.

      Reply
  8. Avatar photoJulie @ Back To My Southern Roots

    August 25, 2018 at 10:50 am

    Oh, how I love chocolate buttermilk sheet cake. This looks absolutely wonderful!!

    Reply
  9. Avatar photoMiz Helen

    August 28, 2018 at 9:51 am

    Your Chocolate Buttermilk Sheet Cake is pure comfort, I will love it! Hope you are having a great week and thank you so much for sharing with us at Full Plate Thursday!
    Miz Helen

    Reply

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Meet Stacey

Southern Discourse is a place where you can find southern family dishes, along with special recipes & table settings. Bringing connection & friendship back to the table by wrapping everything in the faith & grace from which true hospitality springs! Read More

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