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This Mexican chocolate cake is the richest, most moist chocolate cake you’ve ever had, kicked up with cinnamon and a hint of cayenne pepper! Easy to make as a sheet cake and topped with to-die-for cinnamon buttercream.

A small square slice of Mexican chocolate cake with cinnamon frosting and chocolate sprinkles, set on a piece of parchment paper.

I am in grave danger of slipping into hyperbole in my efforts to describe this cake to you. So in an effort to avoid overstating things, I’ll stick to the fundamentals.

There’s chocolate. There’s frosting. There’s sugar — and butter. A pretty generous amount of each, but hey, it’s a sheet cake, so most likely getting divided quite a few ways. Or, uh, maybe just over quite a few days. Anyway, let’s not focus on that.

To recap, the important elements are: chocolate, frosting, and — spices.

Mexican Chocolate Cake

As I’m sure will obvious from reading any further, this is a wholly simplified, American-ized version of a “Mexican chocolate” cake.

Out of curiosity, I recently read a bit about what makes Mexican chocolate special. This research piqued my interest, but unfortunately, if there is any place in Belgium where one can buy authentic Mexican chocolate, this American girl has not found it. And moreover, you’ll be able to knock me over with a feather if I ever do. The Belgians have a lot of confidence in their own chocolate tradition, thankyouverymuch — and rightly so — so I’m not surprised there’s not much importing.

So, when we eventually find ourselves back on the left side of the Atlantic, I look forward to finding and trying some genuine Mexican chocolate. In the meantime, I’ve made do in baked goods by taking plain old unsweetened cocoa powder and adding a little spice myself – mostly cinnamon, a little cayenne. And my taste testers have registered zero complaints.

Bundt vs. Sheet Cake

This cake started with a bundt version I found on I Bake He Shoots, but I personally had a lot of trouble getting the bundt out of the pan intact, despite trying every trick in the book. Eventually I concluded the problem was basically that the cake was too moist to reliably slide out of my pan. (Maybe I need a better bundt pan? Who knows.)

But, given that a too moist cake is not a real problem, I didn’t want to change the cake make-up too much. As a result, I changed the technique, slightly, and form, to a simple 9″x13″ sheet cake. Perhaps less pretty than the bundt cake, but far less subject to unattractive crevasses, at least as easy to serve to a crowd, and most importantly, an invitation to add frosting. 🙂

Obviously you could add any frosting you desire, but I highly encourage you to try this simple cinnamon buttercream. My only regret is that I didn’t make a double batch of it, to squirrel away in a secret place for me to eat with a spoon on tough days.

Use Real Chocolate Sprinkles!

And finally, some chocolate sprinkles on top, because, really, why not?

One of the things I will decidedly miss in the Belgian chocolate department is the ready availability of chocolate sprinkles that are actually chocolate, like those pictured above, not simply “chocolate-flavored.” (Whatever that means!) I might try to pack an entire suitcase full of these guys and bring back my own personal lifetime supply.

Whether you make this for Cinco de Mayo, another Mexican-inspired meal, or just your usual Saturday, I hope it earns rave reviews at your house as it does at mine!

Just look at those sweet little slices. They practically beg you to take a little forkful, don’t they?

Enjoy! ♥

4.76 from 107 votes

Mexican Chocolate Cake with Cinnamon Frosting

By Monica | Nourish + Fete
Prep: 25 minutes
Cook: 35 minutes
Total: 1 hour
Servings: 18
This Mexican chocolate cake is the richest, most moist chocolate cake you’ve ever had, but with a spicy twist! A little kick from cinnamon and a hint of cayenne pepper, then topped with a to-die-for cinnamon buttercream frosting.
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Ingredients 

For the Cake

For the Frosting

  • 1/2 cup (1 stick) unsalted butter, , at room temperature
  • pinch of salt
  • 1 teaspoon vanilla extract
  • 3 cups powdered sugar
  • 2-3 Tablespoons milk
  • 1 Tablespoon cinnamon

Instructions 

  • Preheat oven to 325 degrees F. Lightly coat a 9×13-inch baking pan with cooking spray; set aside.
  • In a large saucepan, melt butter over medium heat. Whisk in the cocoa and espresso powder, followed by the water and sugar, whisking each addition until smooth. Remove pan from heat and set aside to cool for about 5 minutes.
  • In a medium bowl, combine flour, cinnamon, baking soda, salt, pepper, and chocolate chips; mix briefly and set aside.
  • Return to the butter-chocolate mixture. Add eggs and vanilla, then whisk until they are fully incorporated. Gently stir in the flour mixture using a wooden spoon or rubber spatula, then pour batter into the prepared pan.
  • Bake for 30-35 minutes, until a toothpick inserted into the center comes out clean. Remove from the oven and let cool completely before frosting.
  • To make the frosting, beat butter until smooth using a stand or electric mixer. Add salt and vanilla, then beat again to incorporate.
  • Add powdered sugar and 2 tablespoons milk, and beat until smooth and fluffy, starting on low speed to blend, then increasing the speed to high. Scrape the sides of the bowl as needed to ensure everything is well-mixed, and adjust the consistency as needed by adding more milk or powdered sugar. Finally, beat in the cinnamon.
  • Frost and garnish cake as desired.

Notes

This cake is very moist and therefore stays good for several days if kept tightly covered at room temperature.
Cake adapted from I Bake He Shoots; frosting adapted from King Arthur Flour.

Nutrition

Calories: 430kcal, Carbohydrates: 61g, Protein: 3g, Fat: 20g, Saturated Fat: 12g, Cholesterol: 59mg, Sodium: 154mg, Potassium: 166mg, Fiber: 3g, Sugar: 45g, Vitamin A: 515IU, Calcium: 31mg, Iron: 2.1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Mention @nourishandfete or tag #nourishandfete!
Image of Monica Lensink.

Hi! I'm Monica

Just an everyday Mom who checked out of my 9-to-5 to make a living being obsessed with home-cooked dinners. Our lives are as busy as any family, but dinner is the one thing I usually have under control, and this is where I share all our favorites with you!

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4.76 from 107 votes (52 ratings without comment)

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176 Comments

  1. Caitlin says:

    My spouse loves this cake! The cayenne is the perfect amount of burn. Two notes—I would double the frosting because while I had enough to cover the cake, it was a very, very thin layer. And then I personally struggled with the cake lacking structure; it crumbled apart on my plate! Maybe I did something wrong? Either way, it’s delicious! 

  2. Cindy Hernandez-Wall says:

    Excellent recipe, yum! After reading other reviews I used half the cayenne. I made a three layer cake. It turned out beautiful but be careful if you go for three layers. It is a very moist cake and has the potential to crumble while transferring etc.  Because I had a lot to frost w three layers I doubled the frosting and added 8oz of cream cheese. Incredible.  I’ll definitely make again!

    1. Monica | Nourish + Fete says:

      So glad you enjoyed it, Cindy, and were able to make the layer cake work! I’m sure it was a show-stopper. Thanks so much for taking the time to leave this feedback and a 5-star review!

  3. Irma says:

    Can I melt chocolate (using baking chocolate chips over powder) and just mix it in as recipe instructs powder?

    1. Monica | Nourish + Fete says:

      You can try it but it will change the consistency of the cake and most likely be sweeter, unless you can find and use unsweetened chocolate chips.

  4. Aletha Dalicandro says:

    Hi! Any idea of how many cups of batter one recipe yields? I’m making several sizes and am trying to estimate how much cake batter I will need to make overall. If you don’t know, I will just guestimate. Thanks and I’m really looking forward to trying this recipe!

  5. Tifany A Grenier says:

    Could I make this in cupcake form instead of a sheet cake?

    1. Monica | Nourish + Fete says:

      Definitely! Several others have done this and loved them. I would bake them at the same temperature (325) and start checking for doneness around 18-20 minutes. Enjoy!

  6. J says:

    I just baked this. It took 20-25 minutes MORE than the stated time to bake at 325 degrees. There must be a typo in the recipe (I am an experienced baker). Higher temperature or increased baking time is required. Now that it is done and out of the oven, it looks and smells good. I’m looking forward to tasting it!

    1. Monica | Nourish + Fete says:

      Sorry you had trouble with the baking time! Many others have made this as indicated, so it might be worth double checking your oven temperature, although I’m sure you know that from your experience. Glad you were able to adjust and I hope you enjoy the cake!

  7. Kelsey says:

    My review was starting to get long so to the point, it was a great find and many people asked for the recipe. I used boiled milk frosting, because that is my jam, with the tablespoon of cinnamon and enjoyed it thoroughly. I used 1/4 tsp cayenne and will use less or omit next time. Others loved, but i got heart burn!!! Thanks for the recipe

  8. Josette says:

    Moist and delicious! My go-too chocolate cake recipe!

  9. Megan says:

    Made this with a great Fajita meal. This was the best scratch cake recipe I have made. I used 1t. of the Cayenne and it seemed perfect for us. Shaved chocolate for the top and added a pinch of Cayenne to the frosting recipe as well. Highly recommend. Perfect for a day ahead recipe for an event.