4.82 from 22 votes

Hot Chocolate Cake

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112 Comments

Servings: 14 slices

1 hr 25 mins

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My hot chocolate cake is an intensely rich chocolate cake made with one and a half cups of real hot chocolate, iced with cocoa frosting, and layered with marshmallow buttercream.  Make it as a three layer 6″ cake, or a two layer 8″ or 9″ cake.

slice of hot chocolate cake on white plate

I was going to write about how my great-grandmother passed away last week, but I wasn’t sure how to do that on my blog.  Here, I try to revolve my stories around food, and the death of a loved one doesn’t have much to do with chocolate cake.

I wanted to write about how we celebrated her life, her humor, and her faith last night while at the same time we mourned her loss.  Family and friends packed into the too-warm funeral parlor, dressed in itchy black and gray clothes, and my sisters and I made sure to wear leggings under our skirts because, were she alive, Mom-Mom would have commented loudly about the indecency of the “short” skirts that brushed modestly at our knee caps.

Instead, it would be more appropriate to devote this post to talking about how rich this cake is, shamelessly using the word moist because it is saturated with chocolate, melting in your mouth, decadent; but all that’s coming to mind currently is fettuccine noodles in pools of grease-speckled tomato sauce, ladled onto my plate by her shaking hands as she reminded me for the twelfth time to “Make sure you have enough to eat”.

slice of cake on white plate with hot cocoa in the background

I’d want to write about her last birthday, her 101st, tuned to the theme of 101 Dalmatians.  Or how She loved God, her family, and the Orioles.  How many things she saw in 101 years, from the Great Depression to iPhones.

This space is more appropriate for talking about cakes, though.  Did I mention this cake is accented with a marshmallow buttercream?  It’s buttery and smooth and meant to mimic the baby marshmallows that I overload into my mug each time I make hot chocolate, coaxing them under the cocoa surface with a spoon until they are slippery and disintegrating.  The pictures here don’t do justice to the flavors.

Pictures.  There were so many pictures in the funeral parlor. Not 101 years worth, but the highlights. So many smiles in black and white and in color, 5 generations surrounding her, lots of pictures of her dancing, even at my wedding just over a year ago.

My favorite photo was not that, or any other staged one.  My favorite was one taken when she was 98; in it two of my college-aged cousins look on as she tosses a ping pong ball toward a triangle of red plastic cups.  It looks like she just crashed a beer pong tournament at a frat house. The picture was probably snapped quickly with a phone, but the photographer immortalized her spirit in the moment just after the toss, determination firm on her face, the ball aimed squarely for its target.  She was a good shot, evidently.

chocolate frosted cake topped with marshmallows on blue plate  hot chocolate cake on blue plate

I think I’d feel inclined to note that Death at 101 years is not a shame, and it’s certainly not a tragedy.  No long illness kept her shackled to a hospital bed; she was spritely and full of humor, happy and so grateful for life until the end.

But it’s still sad to lose a loved one, no matter how prepared you think you were, to register the finality of death and what it means for future family gatherings. We mourn for the loss of her laughter and jokes and attempts at rapping at Christmas, for the loss of her fiery presence.  We mourn for ourselves, more than anything.

fudgy cake on white plate

Instead I should write about this cake.

Besides, what could I say in a post that could do justice to the legacy left from over a century of well-lived life.

It just wouldn’t be possible.

This hot chocolate cake is really, really good.

Slices of hot chocolate cake topped with toasted marshmallows, with an entire frosted cake in the background
4.82 from 22 votes

Hot Chocolate Cake

A light (not dense) but decadent hot chocolate cake made with real hot chocolate
Prep: 45 minutes
Cook: 40 minutes
Total: 1 hour 25 minutes
Servings: 14 slices
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Ingredients

Cake

  • 2 cups (400 g) sugar
  • 1 ¾ cups + 2 Tbsp (233 g) all-purpose flour
  • ¾ cup (75 g) natural unsweetened cocoa powder
  • 2 tsp baking powder
  • 1 ½ tsp baking soda
  • 1 tsp salt
  • cups avocado oil or vegetable oil or canola oil, vegetable oil would also be OK
  • ½ cup water
  • 2 eggs, preferably room temperature
  • 1 ½ tsp vanilla extract
  • 1 ½ cups hot chocolate (this should be hot to the touch, too. If you are making your own hot chocolate, make it using milk, not water)

Chocolate Frosting

  • 3 sticks butter, softened to room temperature
  • 1 cup cocoa powder, sifted
  • 4 ½ cups powdered sugar
  • 1 ½ tsp vanilla extract
  • cup milk

Marshmallow Buttercream

  • 6 Tbsp butter, softened to room temperature
  • 1 ½ cups marshmallow fluff, about 1 7oz container
  • cup powdered sugar
  • Marshmallows for topping, if desired

Instructions 

  • Makes either a 2-layer 8" or 9" cake, or a 3-layer 6" cake. Baking times will vary and are indicated for each size below.

Cake

  • Preheat oven to 350F and prepare cake pans by lightly but thoroughly greasing and flouring.
  • In bowl of KitchenAid mixer (or in large bowl if using hand-mixer) whisk together sugar, flour, cocoa powder, baking powder, baking soda, and salt.
    2 cups (400 g) sugar, 1 ¾ cups + 2 Tbsp (233 g) all-purpose flour, ¾ cup (75 g) natural unsweetened cocoa powder, 2 tsp baking powder, 1 ½ tsp baking soda, 1 tsp salt
  • With mixer on low speed, stir in canola oil and water.
    ⅔ cups avocado oil or vegetable oil or canola oil, ½ cup water
  • Increase speed to medium and add eggs, one at a time, beating between each addition until well-combined.
    2 eggs
  • Stir in vanilla extract.
    1 ½ tsp vanilla extract
  • Gradually add hot chocolate to bowl, stirring in manually. Return to KitchenAid (or to hand-mixer) and stir on low-speed until well-combined (pause occasionally to scrape sides and bottom of bowl to make sure ingredients are combined completely).
    1 ½ cups hot chocolate (this should be hot to the touch
  • Evenly divide batter into prepared pans (do not fill more than ¾ full, if you have excess batter, discard).
  • If using 8" or 9" pans: bake on 350F for 25-30 minutes (until toothpick inserted in center comes out clean or with few crumbs).
  • If using 6" pans: bake on 350F for 40-45 minutes (until toothpick inserted in center comes out clean or with few crumbs).
  • Once finished baking, allow cakes to cool in pans for 15 minutes. Run a butterknife around the inside rim of the pan to loosen the cakes and then invert onto cooling racks to remove from pans and allow to cool completely before frosting.

Cocoa Frosting

  • Measure out your milk and set aside.
    ⅓ cup milk
  • While cakes are cooling, prepare frosting by beating butter on medium speed (with KitchenAid or hand mixer) until well-creamed.
    3 sticks butter
  • Add cocoa powder and 1 cup of powdered sugar, beat on low speed until it begins to combine.
    1 cup cocoa powder, 4 ½ cups powdered sugar
  • Add approximately half of the milk and the vanilla and beat on low speed until ingredients are creamed together.
    1 ½ tsp vanilla extract
  • Add the remaining powdered sugar, stir, and then add remaining milk, stirring until ingredients are creamed together.
  • Be sure to scrape sides and bottom of bowl to ensure ingredients are well-combined.
  • Set aside chocolate frosting and prepare marshmallow buttercream.

Marshmallow Buttercream

  • Cream together butter and marshmallow fluff.
    6 Tbsp butter, 1 ½ cups marshmallow fluff
  • Gradually add powdered sugar until combined.
    ⅔ cup powdered sugar

Assembly

  • Once cakes are completely cooled, prepare by icing each layer with chocolate, applying the chocolate most heavily 1" around the edges and creating an indent or "nest" in the center for the marshmallow fluff.
  • Spread or pipe marshmallow fluff into the indent created with the chocolate frosting, and then top with the next layer and repeat.
  • Ice the entire outside of cake with the chocolate frosting and pipe or spread marshmallow buttercream on the center of the top.
  • Just before serving, top with marshmallows for decoration (if desired) and serve.
    Marshmallows for topping

Nutrition

Serving: 1piece | Calories: 633kcal | Carbohydrates: 118g | Protein: 7g | Fat: 18g | Saturated Fat: 5g | Trans Fat: 1g | Cholesterol: 37mg | Sodium: 363mg | Potassium: 301mg | Fiber: 5g | Sugar: 83g | Vitamin A: 194IU | Calcium: 61mg | Iron: 3mg

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

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great-grandmother playing beer pong with shirtless college student in background

bride and groom at alter with grandmother and great-grandmother

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4.82 from 22 votes (5 ratings without comment)

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112 Comments

  1. Pamela Voisey says:

    Sorry for your loss ❤️

  2. Maariyah says:

    Can this be made into cupcakes?

    1. Sam says:

      Hi Maariyah! This should work just fine as cupcakes. 🙂

  3. Ella Sultana says:

    Hi, I have an 8.5” cake tin and want to make this 3 tiered.. can i double the recipe?

    thanks!

    1. Sam says:

      Hi Ella! This recipe will make a 2 layer 8 or 9 inch cake. If you need 3 layers of 8.5 inches each you can just increase the recipe by 50%. 🙂

  4. Laura says:

    Hi Sam,
    Not sure where you are located but I would love if you added options to help out us high altitude ladies. I usually add a little flour but if you have other tips or tricks I am all ears.
    Thanks
    Laura from Colorado

    1. Sam says:

      Hi Laura! Unfortunately I have never baked at a high altitude so I am not sure what alterations need to be made so I really can’t comfortably add tips for high altitude baking. 🙁

  5. k says:

    5 stars
    so good! the cake is amazingly moist and fluffy. loved it.

    1. Sam says:

      I am so glad you enjoyed it so much! 🙂

  6. Soni says:

    2/3 cups of oil??? Does this mean 2 or 3 cups? I need correct measurement pls… Is this correct as seems like a lot, also can you give the measurements in ML since it’s a liquid ? Thanks

    1. Sam says:

      It is 2/3 cup not 2 or 3 cups. You should be precise in your baking. In ML that is 158ml. 🙂

  7. Winona Entwisle says:

    Hi Sam! Would this cocoa frosting recipe be good with your vanilla cake recipe? Need to make a birthday cake and ingredients are limited right now so can’t do the fancy frosting recipe w semisweet choc and hubby says no thanks to cream cheese frosting. Any other suggestions?
    Thanks!!

  8. Sue says:

    5 stars
    What a lovely tribute to your great grandmother. It’s always a pleasure to read your posts and this one, especially so. Your writing is magical and so are your recipes. I made your hot milk cake 2 days ago (yum!) and today I woke up and decided to make this one after finding a mocha mix in the back of my kitchen cupboard. Ridiculously moist and chocolatey, it was perfect even without any frosting (did not have all the ingredients for frosting). I come from a family that doesn’t bake at all and reading and trying your recipes has been a true joy for me (and I suppose, my friends and family who get to taste 😊). Thank you ever so much!

    1. Sugar Spun Run says:

      Thank you so much for your kind and sweet comment, Sue! I am glad that you have enjoyed my blog and my recipes. I am happy that I can bring you some joy in these uncertain times. Thank you for trying this recipe, I happy you loved it. 🙂

  9. Dee says:

    I had to add a little milk to the marshmallow buttercream….. before the milk it was just super stiff and clumpy…. the milk made it perfect!

    1. Sam says:

      So glad you enjoyed! 🙂

  10. Bridgette Mady says:

    5 stars
    would you mind sharing the hot chocolate recipe you use? I have so many I love, but would love to try yours! I can’t wait to make this for my family this holiday season :))

    1. Sam says:

      Hi Bridgette! I just use a hot cocoa packet mix using milk, or I get it from a coffee shop. 🙂

      1. Bridgette Mady says:

        perfect, thank you so much lady 🙂

  11. Sarah Pourhosseini says:

    Do you think this cake would work with your vanilla buttercream frosting? My sister is wanting a two tiered cake for her daughter’s first birthday (one tier white, the other chocolate) so I’m needing to keep the frosting consistent. Any suggestions would be much appreciated!

    1. Sam says:

      Yes, it would work well with that frosting 🙂

  12. Shannon says:

    Can the marshmallow buttercream be made a day ahead? I am taking a hot cocoa bundt cake to work & want to give folks the option of using a marshmallow frosting – your recipe sounds super yummy! – which would be served in a bowl on the side. Would this frosting stand up to that?

    1. Sam says:

      I don’t think that would be a problem at all! Hope you love it!

  13. Pink Britt says:

    2 stars
    Ummm. I used 3 six inch pans, was careful to only fill 3/4 way full.. they are up over and all over my oven. Checked all measurements twice. Any suggestions?

    1. Pink Britt says:

      Nevermind. Batter started an oven fire that would not quit. Had to put it out with a fire extinguisher. LOL! I’ll try again after new years.

      1. Sam says:

        OMG! Yikes! Sorry to hear about that… I have never had my cake rise so much/overflow and I make this one frequently so I’m afraid I’m not sure what may have gone wrong. Sorry to hear about your fiasco!!

  14. Katrina says:

    5 stars
    My batter seems super thin – is that right?

    1. Sam says:

      Yup! 🙂

    2. Cecelia says:

      I searched all the way through the comments hoping to find one saying this. Lol

  15. Stacey says:

    About to put this cake together but I’m curious if the cocoa you used for the frosting is unsweetened or hot cocoa mix? Thank you!

    1. Sam says:

      Hi Stacey, sorry I’m just now seeing this, I just use unsweetened cocoa powder for the frosting.