Frosted chocolate buttermilk sheet cake

Light, fluffy and delicate chocolate buttermilk sheet cake topped with a ridiculously simple chocolate frosting and finely chopped nuts. 
Chocolate buttermilk sheet cake recipe

It’s been a month since we’ve been talking chocolate desserts. There have been cakes, cookies, and brownies. Some simple, some more complicated. All impossible to resist. But I can’t end this chocolate party without two easy as 1-2-3 chocolate desserts.

This frosted chocolate buttermilk sheet cake is one of them. It takes no more than 5 minutes to make the cake batter. Bake and  wait until it’s cooled.

The frosting. It’s ridiculously simple and it’s as good as a chocolate frosting can be. All you have to do is mix the ingredients until desired consistency and spread it over the baked and cooled cake.

Frosted chocolate buttermilk sheet cake

The original recipe calls for sour milk but I’ve used buttermilk which made a big difference in the texture of the cake. It is moist and tender with a nice crumb, just like a cupcake.

I’ve baked the cake in a 13X9 pan, not quite a sheet cake and it was a little thicker than an original sheet cake and make the frosting a little fluffier whipping it up a little longer.

Either way, even if you bake it in a sheet pan or a 13X9 pan like me, I highly advise you to make this cake for your next get-together, potluck or just because you’re craving something sweet, rich and chocolate-y.

Frosted chocolate buttermilk sheet cake

To get the recipe, please visit my friend Erin’s blog

Dinners dishes desserts

Chocolate Sheet Cake 


This frosted chocolate buttermilk sheet cake is part of the #chocolateparty 1st anniversary. Want to join us and party all month-long? Here’s how:

How to participate in September’s Chocolate Party

1. {mandatory} Make your family’s favorite chocolate dessert and share it with us for a chance to win one of the 6 great prizes offered by our sponsors. You can also add recipes that have been previously shared on your blog. (5 recipes maximum)

If you do not have a blog, just email me  roxana(at)roxanagreengirl(dot)com  your recipe with your own photo (it can be a photo snapped with your phone, as long as it is your photo) and I will create a page with your recipe.

2. {mandatory} Once your recipe is published, add your link to the widget at the bottom of this post (the widget will be working September 2nd till September 30th) ( on October 1st, 6 winners will be chosen at random from all the recipes submitted)

3. {mandatory} To be eligible to win one of the amazing prizes** offered by our generous sponsors you must add the following in your post :

Bring your favorite chocolate dessert to Roxana’s home baking #chocolateparty and win amazing prizes from OXO, Calphalon, KeurigImperial SugarHoney Ridge Farmsand Land O Lakes® Butter

4. {optional} Help us spread the word on social media for a chance to win one $100 Visa gift card, offered by Roxana’s Home Baking. To enter the giveaway, use the widget on this page. New entries are added every day, so check often!

5. {optional} Add the party logo or this collage to your blog post or sidebar. Or both!

Chocolate party sponsors

** Due to international shipping rates, all the prizes are open to US residents only.

Sending love your way,


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    Hello! My name is Roxana and I'm a self-taught baker, wanna-be photographer and the writer behind Roxana's Home Baking, where I share original and adapted scratch recipes. 

Here you'll find no fuss, no hassle easy recipes with ingredients you most likely already have in your kitchen.  Read more ....


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  1. Dalila G. says

    Talk about ‘yumminess’…….YES!!!
    Chocolate in any form is a hit in my household.
    Guess what I’ll be baking soon . :-)

  2. says

    Chocolate cakes made with buttermilk have such a beautiful moist crumb…yum! LOVE that this cake is baked in a 9×13-inch baking pan vs. a sheet pan for a thicker cake and satisfying bite. And, with that whipped chocolate frosting? Yes, please!

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