Chocolate Almond Swirl Cake

Chocolate Almond Swirl Cake

Buckle up everyone! I'm going to counter all the recent bean recipes with a birthday cake. It was Wayne's birthday this week and I felt like a special cake was in order. I wanted to make something that looked classic from the outside, with a surprise when you slice into it. I also wanted to combine all the flavors he loves - chocolate, olive oil, almond, and a good kiss of salt to balance the sweet. He's always showing me photos of crazy cakes, so I thought it'd be fun to bake him some sort of a swirl cake.

Chocolate Almond Swirl Cake

The Swirl Cake Game Plan

Swirl cakes, zebra cakes, and tiger cakes all have three main components: the base cake, the swirl, and the frosting or icing. For this version I made an incredibly moist and fragrant olive oil cake to use for the base and swirl. It's a favorite made with yogurt which helps keep things tender. The tangy note of the yogurt nicely balances out the sweetness as well. And then there's the frosting. The frosting here is classic chocolate buttercream bolstered with an entire tablespoon of almond extract. On the swirl front I ended up doing two versions to see which one I liked better - one I envisioned with a hot pink dragonfruit or raspberry swirl (I had such high hopes!!), and another with classic chocolate. 
Chocolate Almond Swirl Cake

How to Assemble a Swirl Cake

This is what a swirl cake looks like (above) just out of the oven. When you slice into it you get beautiful striping and swirls depending on how you layer or swirl the batter. For a cake like this I use a ratio of about 2 parts yellow cake batter to 1 part chocolate cake batter. You do 2 big spoonfuls of batter into the center bulls-eye of your prepared cake pan, and then top it with one spoonful of chocolate. Repeat until all the batter is gone. Always placing the batter onto the bulls-eye.Chocolate Almond Swirl Cake Recipe

The Frosting

Before we get to the details, just a reminder to let your cake cool completely before you attempt to frost it. And before you go to mix up your buttercream, make sure your buttercream is at a nice, mild, room temperature. Not too warm, not too cool. You want it to whip up nice and billowy. If your kitchen is too warm, and your butter is starting to get a little sweaty looking as you mix it (or at any point, really). Just give it a few minutes in the refrigerator.Chocolate Almond Swirl Cake
To make this shape cut a square cake in half, and stack.

A Tasty Fail

You can see a couple of in-process shots (below) of the version of the swirl cake made with dragon fruit puree. You know those smoothie packets? I pureed one of those. And it looked incredibly promising all through the bake. The disappointment came when you sliced into the cake. If you were expecting bold stripes, no dice. But if you were expecting a really delicious cake, we're still in business. If you want to make this version - do it for the flavor, not the visual. Mix 1/4 cup of the puree into about half of the yellow cake batter, and skip the cocoa. 
Chocolate Almond Swirl Cake
Before the bake (above), after the bake (below). 
Chocolate Almond Swirl Cake
Swirl cakes are a lot of fun. And you can play around with all the different components of your cake if you have another frosting you like, favorite base cake recipe, or even the shape. 

Or, if swirl cakes aren't your thing but you still want to make something sweet and tasty try these brownies, this Devil's Food Cake, this popular chocolate cake, or skip the cake altogether, and churn up some berry swirl ice cream.

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Chocolate Almond Swirl Cake

4.67 from 15 votes

Resist the urge to substitute Greek yogurt here. I tested it, and it made batter too dense. Or! if it's all you have, thin it out a bit, to the consistency of plain yogurt. I haven't tested this, but suspect it will work better than straight Greek yogurt.

Ingredients
  • 3 cups / 13.5 ounces all-purpose flour
  • 2 teaspoon baking powder
  • 1/2 teaspoon fine grain sea salt
  • 1 1/2 cups / 9.75 oz sugar
  • 2 teaspoons almond extract
  • 3 eggs
  • 1 1/2 cups / 12 ounces full-fat plain yogurt
  • 1 1/3 cups / 10.5 ounces extra virgin olive oil
  • 2 tablespoons unsweetened cocoa powder
Chocolate Almond Buttercream Frosting
  • 1 1/4 cup / 285g unsalted butter, room temperature
  • 4 1/3 cup / 525g powdered sugar
  • 3/4 cup / 70g cocoa powder
  • 2 tablespoons milk, cream, or coconut milk
  • 1/2 teaspoon fine grain sea salt
  • 1 tablespoon almond extract
Instructions
  1. Preheat your oven to 325F with a rack in the center. Oil and line a 9-inch square cake pan with parchment paper.
  2. Sift the flour, baking powder, and salt into a medium bowl.
  3. Stir the sugar and almond extract together in a large mixing bowl. Whisk in the eggs, and keep going for a minute or two, until the mixture is light in color and billowy. Stir in most of the yogurt (reserve 2 tablespoons), and then beat in the olive oil until uniform and creamy. Add the flour mixture and fold until barely combined, avoid over-mixing.
  4. Scoop 1 cup of the batter into a separate bowl, add the cocoa powder and the reserved 2 tablespoons of yogurt and stir to combine. Now you have a yellow batter and a chocolate batter.
  5. Place two large spoonfuls of the yellow batter in the middle of the prepared cake pan. Top with one spoonful of the chocolate batter. Alternate this way, 2 spoonfuls yellow batter and one chocolate, directly on top of each other in the center of the pan until all the batter has been used. Very gently rap the pan on the counter to level out the cake.
  6. Bake for 45-55 minutes or until the sides pull away from the pan a bit and the middle has firmed. Cool in the pan for 20 minutes, and then transfer to a cooling rack to cool completely.
Make the Frosting:
  1. Use a mixer to beat the butter on medium speed until creamy. Add the powdered sugar, cocoa powder, milk, salt, and almond extract. Stir by hand with a spoon to incorporate all the powdery ingredients (so you don’t make a mess), and then beat on medium speed for another minute or so. If you want your frosting a bit thicker, add more powdered sugar. If you want it a bit thinner, add more milk a tablespoon at a time. Covered tightly, you can keep the frosting refrigerated for up to a week, longer in the freezer. Bring to room temperature to use.
Frost the Cake:
  1. If your cake is a bit domed, use a serrated knife to level it out. Cut the cake exactly in half. Scoop a generous amount of frosting onto one half and spread evenly. Top with the other half, if you have the patience to do a crumb layer and refrigerate go for it, or simply slather on the frosting and refrigerate. Bring to room temperature to serve.
Notes

Serves 16.

Serves
16
Prep Time
10 mins
Cook Time
50 mins
Total Time
1 hr
 
If you make this recipe, I'd love to see it - tag it #101cookbooks on Instagram!

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Comments

This just makes me want to go out tomorrow first thing and buy a huge cake! I mean I could make it, but I don't know if I could wait that long!

Ross Alexander

I added a large orange's worth of finely grated zest to the batter; highly recommend along side the almond, yogourt, olive oil, and chocolate. Delicious and so fancy looking! Will make again.

Sheila

Could I substitute coconut oil for olive oil? Or is the olive oil part of the flavor profile?

SusAn

    I think, for this one, you'll want to stick with olive oil.

This is my second time making this cake because it is just SO good! Love the flavors of olive oil and chocolate. I wasn't in the mood for almond, so just left that out. The frosting is the BEST!

Alyssa Erickson

Hi there - this looks wonderful and I'd love to try it. If I wanted to halve the recipe, what size pan could I bake this in, and for how long? Many thanks for your recommendation! And thank you so much for your beautiful blog.

Julie

    Hi Julie - Hmmm. You can bake it in just about any pan, or muffin tin you like - the general rules of thumb would be. 1) don't fill more than 2/3-ish full. 2) Bake until the cake is a bit golden on the edges & a cake tester (or toothpick) is batter free when you test in the center.

Heidi, this looks amazing (like everything you make) and I'm hoping to make it this week for my husband's birthday! Does it matter if I use natural unsweetened cocoa powder vs dutch-process cocoa? Or is any cocoa good cocoa (I think I'm firmly in this camp...but am I wrong)? Thanks! :)

Parisa

Wondering if the cocoa in the frosting is supposed to be unsweetened as well?

Mary

Is this cake good sans frosting? (I'm all for a yummy buttercream frosting but trying to cut back a bit in the sweets department. )

Kristina

    Hi Kristina! You could dust it with a bit of powdered sugar and call it a day!

Heidi, this cake + frosting ! W O W. I did not have almond extract, and used lemon juice in its stead, and also added lemon zest and cardamom to the cake batter and black pepper to the frosting. The cake texture is perfect, the frosting consistency/sweetness level is exactly where I like it. Thank you!!!! A most splendid swirly cake.

Lindsay

This is delicious! I baked it for my birthday this weekend (no one else in my house can bake, so you do what you have to do) and it turned out so well. I did use Greek yogurt but thinned it with milk per your recommendation and that seemed to do the trick. Next time I might put some toasted slivered almonds on the top, too.

Jennie

Do you think self-raising flour would work here?

Darien

    It should, although I haven't tested, and you'd have to reduce the salt, etc.

Took a bit of effort but it turned out great!

Rob

Lovely and stunning cake Heidi. Its surely a show stopper. Did you ever try adding a drop or two of beet juice to that pink cake? I find that reliably retains the colour even after cooking. Just a thought.

Kiran Vadrevu

I made this cake yesterday for myself for Mother’s Day and it was everything I thought it would be and more! A delicious cake and the buttercream was spot on. Will definitely be making this beautiful, special cake again!

Dawn

Heidi, was quite excited to see this recipe and was all set to make it when I saw 1 tbsp almond extract, really? Please tell me this is not a misprint? Apart from this it looks very good. Presumably I can make it without the almond extract? Thanks Annie

Anne Martin

    Hi Anne! It's not a misprint. And is definitely part of the flavor profile. You could play around with another flavor accent though. Something boozy, or a vanilla?

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