The Ultimate Gluten Free Chocolate Cake

With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make!

Close-up of the gluten free chocolate cake on a decorative cake stand. A few pieces of the cake have been cut, showing the fluffy sponges and rich frosting.

There are few desserts more memorable or more impressive than a truly good chocolate cake. Sure, there is a lot to be said about a “triple chocolate salted caramel s’mores cake” or the like… but sometimes, you just need a chocolate cake. No fuss, no bells and whistles.

This gluten free chocolate cake is pretty much exactly that. Quick and easy to make, with an overabundance of cocoa powder and chocolate, without being overly sweet. It walks that line between the bitterness of dark chocolate and the creamy sweetness of milk chocolate – and it does it well. Very well.

The gluten free chocolate sponges are melt-in-the-mouth soft, and each bite feels like taking a sip of luxuriously rich hot chocolate. Just, you know… in cake form.

The chocolate buttercream frosting is fluffy and rich, its chocolate factor coming from both a generous helping of cocoa powder and a whole lotta melted dark chocolate.

And when you combine the two… well, it’s basically every chocoholic’s dream come true.

Gluten free chocolate cake, decorated with swirls of chocolate buttercream frosting, on a decorative cake stand.

When it comes to decorating the cake, I went with the rustic minimalism of buttercream swirls you can easily create with an offset spatula or even the back of a spoon. (Unless, of course, you’re a control freak like me – in which case, those “spontaneous” swirls will take you… oh, say an hour or two to achieve.)

To make your life easier, and to make sure you give this AMAZING recipe a go, here are the step-by-step pictures for making this truly jaw-droppingly delicious gluten free chocolate cake.

MAKING THE GLUTEN FREE CHOCOLATE SPONGES

It’s the same old story of sifting together the dry ingredients, adding the wet ingredients, mixing it all up, and baking the sponges until risen and fluffy and wonderful.

But let’s start at the beginning.

Sift together gluten free flour, xanthan gum, baking powder, baking soda and cocoa powder.

Sifting the dry ingredients for the gluten free chocolate cake sponges.

Add in the sugar and salt. Whisk it up.

Adding the sugar to the dry ingredients of the chocolate sponges.

Whisking together the dry ingredients of the chocolate sponges.

Pour in the vegetable oil, milk and crack in the eggs.

Cracking an egg into the bowl with the chocolate cake batter ingredients.

Whisk it all together until you get the most luscious chocolate cake batter. At this point, you might think that this is it – it looks like it has the perfect consistency and you might be tempted to bake it as is.

Showing the texture of the cake batter before the addition of how water, by letting it drip off a whisk.

But nope, there’s one more thing, and it’s… boiling hot water. I know it sounds kind of out there, but it really truly works. This will ensure that the gluten free chocolate sponges stay moist and delicate. No, it won’t scramble the eggs. And no, it won’t make the cake “puddingy”. Don’t worry, mmkay?

Pouring the boiling hot water into the chocolate cake batter.

The final cake batter will be runny, and it will look like a super luxurious hot chocolate. It will be oh-so tempting to have a taste (or two), but al least try to resist.

Pour the cake batter into lined round cake pans, and bake. That’s all there is to it.

Pouring the rich chocolate cake batter into the lined round cake pan.

THE CHOCOLATE BUTTERCREAM FROSTING

It’s butter and powdered sugar and cocoa powder and melted chocolate, all whipped together into fluffy submission. Oh, and a generous pinch of salt – trust me on that one.

Salt calms down the sweetness of the powdered sugar, and lifts up the chocolate to shine in all of its glory. It’s the kind of baking magic that makes you all warm and tingly inside, like you’re a part of a secret society of people who understand that salt has a place of honour in a chocolate frosting.

This chocolate buttercream frosting is smooth, fluffy, rich and decadent – and it just looks so darn good all swirled up on the cake.

Close-up of the gluten free chocolate cake on a decorative cake stand. A few pieces of the cake have been cut, showing the fluffy sponges and rich frosting.

ASSEMBLING THE GLUTEN FREE CHOCOLATE CAKE

We have the sponges – if they’re a bit domed, level them out by cutting off the domed tops with a serrated knife. Aaaand… you’ve just got yourself some snacks. Ain’t it great?

Then, it’s the same old game of sponge-frosting-sponge-frosting. Spread a generous layer of frosting in between the chocolate sponges, but leave enough for frosting the outside of the cake.

Frosting the bottom layer of the cake with chocolate buttercream frosting, using an offset spatula.

Assembling the gluten free chocolate cake by placing the second sponge on top of the frosting layer.

Crumb coating the cake isn’t all that important here. Just spread the remainder of the chocolate buttercream frosting all around the top and sides of the cake, and get creative with your swirling.

There’s no right or wrong way of doing this. Have fun. And… don’t overthink it.

Decorating the gluten free chocolate cake with swirls of chocolate buttercream frosting, using an offset spatula.

Gluten free chocolate cake, decorated with swirls of chocolate buttercream frosting, on a decorative cake stand.

And… ta-daaaaaaa! You’ve just made the world’s best gluten free chocolate cake.

Oh, don’t look so sceptical. How do you know it’s not the best? Have you tried all the gluten free chocolate cakes out there? No? See, this could very well be the very pinnacle of gluten free chocolate cake excellence. I mean, it sure tastes like it.

Close-up of a piece of the gluten free chocolate cake, with the rest of the cake in the background.

But regardless of whether or not this is the best gluten free chocolate cake out there (though I still maintain it is)… the fact is that it’s delicious and easy to make and almost nostalgic in its beautiful simplicity. What more could we ask for?

A slice of the gluten free chocolate cake on a white plate, with a bite taken out of it.

The Ultimate Gluten Free Chocolate Cake

With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make!
Course Dessert
Cuisine Gluten Free
Keyword chocolate dessert recipes, easy cake recipes, easy chocolate cake recipe, gluten free chocolate cake, how to make a chocolate cake
Prep Time 30 minutes
Cook Time 40 minutes
Total Time 1 hour 10 minutes
Servings 10
Author Kat | The Loopy Whisk

Ingredients

For gluten free chocolate sponges:

  • 2 cups + 3 tbsp (265 g) gluten free flour
  • 1/2 tsp xanthan gum
  • 3/8 cup + 1/2 tbsp (50 g) cocoa powder
  • 1 1/2 tsp baking powder
  • 1 1/2 tsp baking soda
  • 1 1/2 cups (300 g) granulated sugar
  • 1/2 tsp salt
  • 2 eggs, room temperature
  • 1 cup + 2 tsp (250 mL) milk, room temperature
  • 1/2 cup + 1 tsp (125 mL) vegetable or sunflower oil
  • 1 cup + 2 tsp (250 mL) boiling hot water

For chocolate buttercream frosting:

  • 3 sticks (340 g) unsalted butter, softened
  • 2 cups (250 g) powdered sugar
  • 1/2 cup + 1 tbsp (75 g) cocoa powder
  • pinch of salt
  • 5 1/3 oz (150 g) dark chocolate, melted and cooled

Instructions

For gluten free chocolate sponges:

  1. Pre-heat the oven to 355 ºF (180 ºC) and line two 7 inch round cake pans with greaseproof/baking paper.

  2. In a large bowl, sift together the gluten free flour, xanthan gum, baking powder, baking soda and cocoa powder.

  3. Add the granulated sugar and salt, and whisk well.

  4. Add the eggs, milk and vegetable/sunflower oil. Whisk well, until you get a smooth cake batter.

  5. Add the boiling hot water, and whisk until you get a runny cake batter with no lumps.

  6. Evenly distribute the cake batter between the two lined cake pans, and bake in the pre-heated oven at 355 ºF (180 ºC) for about 40 minutes or until spongy to the touch and an inserted toothpick comes out clean.

  7. Allow to cool.

For chocolate buttercream frosting:

  1. In a stand mixer, or using a hand mixer with the double beater attachments, beat the butter for 2 - 3 minutes, until pale and fluffy.

  2. Add the powdered sugar, and beat for a further 5 minutes.

  3. Add the cocoa powder and salt, and beat until evenly distributed in the buttercream.

  4. Add in the melted (and cooled) dark chocolate, and beat until you get a rich, fluffy chocolate frosting with an even chocolate brown colour.

Assembling the cake:

  1. If the sponges are domed, level them out by cutting off the domed tops with a serrated knife.

  2. Place the bottom sponge layer on a cake stand, and spread a generous layer of frosting on top, but leave enough for frosting the outside of the cake. Then, place the other sponge on top of the frosting.

  3. Use the remaining chocolate buttercream to frost the outside of the cake. Decorate the cake by creating swirls of buttercream with an offset spatula or the back of a spoon.

  4. Enjoy!

Storage:

  1. The gluten free chocolate cake keeps well in the fridge, in a closed container or wrapped in cling film, for 3 - 4 days.

The Ultimate Gluten Free Chocolate Cake - With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make! Chocolate dessert recipes. Easy cake recipes. Birthday cake. Gluten free cake recipes. Gluten free desserts. Gluten free recipes. #glutenfree #chocolatecake The Ultimate Gluten Free Chocolate Cake - With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make! Chocolate dessert recipes. Easy cake recipes. Birthday cake. Gluten free cake recipes. Gluten free desserts. Gluten free recipes. #glutenfree #chocolatecake The Ultimate Gluten Free Chocolate Cake - With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make! Chocolate dessert recipes. Easy cake recipes. Birthday cake. Gluten free cake recipes. Gluten free desserts. Gluten free recipes. #glutenfree #chocolatecake The Ultimate Gluten Free Chocolate Cake - With melt-in-the-mouth gluten free sponges that taste like hot chocolate in cake form and a fluffy rich chocolate buttercream frosting, this gluten free chocolate cake is the very definition of comfort food. Plus, it’s easy and quick to make! Chocolate dessert recipes. Easy cake recipes. Birthday cake. Gluten free cake recipes. Gluten free desserts. Gluten free recipes. #glutenfree #chocolatecake

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