There’s something about Spring that makes me want to lighten everything up. I’m currently repainting all the trim in my house a nice bright shade of white, swapping out my dark, heavy winter clothing and even lightening things up in the kitchen. I made this ethereal Spring Einkorn Sponge Cake with Lemon Buttercream for a baby shower last week and it was utterly delicious.
I never actually meant to make this cake. In fact, when I cracked open my trusty Einkorn cookbook and turned to what I thought was my usual birthday cake recipe, I didn’t even notice the pages were stuck together. It was late in the evening, I needed to get my cake baked for the baby shower in the morning, and so I just gathered all the ingredients, and set to mixing, sifting and folding my little heart out. Very Rachel a la English Trifle.
It wasn’t until about halfway through the recipe, as I was folding a bowl full of big, fluffy egg whites into my batter that I realized my mistake. Oh no!!! I’d made SPONGE CAKE instead of regular cake! I’ve always been super intimidated by sponge cake after one brief foray that ended in something more closely related to a rock than dessert. And here I was baking a sponge that lots of lovely shower attendees needed to eat the next morning! Oh dear.
What’s so special about a sponge cake?
Sponge cake is aptly named. Light, a little squishy with a slight chew. It contains a much smaller proportion of flour than a regular cake, and much larger proportion of eggs. As you bake a sponge, you separate the yolks and whites, working with each separately. The yolks become an almost custardy mix with the sugar and the whites are whipped into a cloud of meringue-y fluff. You fold them back together to make the magical combination that brings you all that wild rise in the oven.
Is it easy to bake a sponge cake?
Honestly, no. Baking a sponge is not a quick or simple process. It’s not a recipe I would probably start with as a beginner. And I say that from true first-hand experience. I tried a sponge as a newbie baker and it was an utter failure.
While baking a sponge can certainly be tricky, and the process is a little more involved, it is a PERFECT project to take on for FUN! If you have some time- an evening after your kids’ bedtime, perhaps- it is such a fun and rewarding project!
What is so tricky about sponge cake?
If you’ve watched any season of Great British Bake Off, you’ve seen many a seasoned baker struggle with a sponge. I first attempted one early on in my culinary career, and it was so hard you could have used it as a stepping stone. What went wrong? Well, here’s a few things that can go wrong when baking a sponge.
- You didn’t beat the butter. Beating the butter in the early stages of the cake is a vital piece of the pie, er…cake. It makes sure there is enough air in the foundation of your cake. Your butter needs to be room temperature as well, to achieve the proper fluffy texture. The good news? This step isn’t even in my recipe! So no worries there!
- Over-mixing the flour. There isn’t a lot of flour in a sponge to begin with, but you definitely don’t want to overstimulate that flour and get it all gluten-y. Another great thing about my recipe is that you double sift the flour before adding it into the mix, AND you fold it in by hand. That way, you don’t have to fear your stand mixer beating all the fluff out of your batter.
- Make sure ALL your ingredients are room temperature. So not just the butter, but EVERYTHING! Think ahead, set it all out a few hours before baking time and you’ll be good to go. This makes sure that everything can combine easily and eliminates the risk of the cake being overly dense.
Baking with Einkorn
Years ago, before I even understood that my body has a hard time digesting grains, I made the switch to Einkorn flour. Learning that it was an ancient grain that had never been hybridized really appealed to me. Knowing that thanks to its weaker gluten structure, it was easier to digest, made sense! Hearing that it contained more protein, vitamins and minerals than regular flour, and I was sold!
All health benefits aside, for me, baking with Einkorn flour is all about FLAVOR. Einkorn flour gives a beautiful golden color to your baked goods. A nutty, buttery taste that can’t be beat. It adds so much depth and interest to the treat, all the while being better for your body. I can’t recommend it highly enough.
I typically bake with Jovial’s All-Purpose Einkorn Flour, which I buy in 10 lb. bags. It isn’t cheap, but it is absolutely worth it!
What flavors work well with sponge cake?
I chose to use strawberry jam as the filling for this recipe and used lemon juice and vanilla bean in the buttercream, but here are a few other flavor combinations you could try!
- Orange + raspberry. Substitute orange zest for the lemon zest in the batter, raspberry jam for the filling and add orange zest and juice to the frosting. You could also add some crushed freeze dried raspberries to the frosting for a delightful pink color!
- Lavender + lemon. People seem to be really divided on the issue of lavender used in food, but when there is lemon and cream added to the mix, I’m all for it! You just need to be cautious with your lavender or it can come out a bit soapy. You’re going for a hint of floral flavor, not eau de hand soap. I would use a lemon curd for the filling between the cakes, then add 1 tsp crushed lavender buds to the lemon buttercream.
- Strawberries + cream. This is making my mouth water just thinking about it. Instead of just strawberry jam, mix together the jam, some mascarpone cheese and whipped cream. Substitute this mixture for the frosting on the outside as well, and sprinkle with either freeze dried strawberry dust or cover with fresh sliced strawberries and strawberry blossoms. Dreamy!
Your cake doesn’t need to be perfect
Here’s what I’ve learned about baking: unless you work in a French patisserie, it does not need to be perfect. I spent so many years ashamed of my scruffy bakes, imperfectly frosted cakes and loaves of bread a little on the dense side. But guess what!? There is nothing like home baked goods made with love. When you show up with a homemade cake, cookies, muffins, etc. whether they are perfectly shaped or lean a little to one side, people are delighted.
Crooked cakes, wonky frosting and leaky filling are all parts of baking a cake at home. Remember! You are an amateur! Also remember that a good buttercream covers a myriad of sins.
Essential tools for a really great sponge cake
I’m not one to recommend buying unnecessary items. I am always on a strict budget because we’ve got a big homestead and even bigger dreams to save for. So when I tell you that these items are necessary for a good sponge, you can trust me! Here’s a few things to have on hand for your baking project.
- A stand mixer. I know. They’re pricey. Believe me. If I wouldn’t have received one for our wedding (almost 16 years ago!) I probably wouldn’t have shelled out the cash for one of these puppies. But boy do they make this process easier. The good news is, you can easily find these secondhand on Craigslist or Facebook Marketplace for a fraction of the price.
- 8 inch cake pans. The original recipe calls for 1- 9 inch pan but I’ve got a “more the merrier” policy when it comes to cake, so I used 3- 8 inch pans. The reason I prefer these is simple- that’s the size of my cake stand. You could easily use another size, but I use and love these stainless steel rounds for all my cake baking.
- An offset spatula. I never knew what these were until culinary school. But let me tell you, you’ll never attempt to frost a cake without one again. Dipped in a little hot water as you frost, these babies can smooth out even the messiest of frostings.
- A cake stand. I have a basic, 8.5 in white cake stand that I’ve had for over a decade. It serves me well, has managed to survive many a car ride while balanced precariously between my legs and delivered lots of cakes made with love. Grab yourself one, it’s a baker’s staple! I love this marble one from Sur La Table.
Einkorn Sponge Cake with Lemon Buttercream
DifficultyHard
Servings12-16
Prep time45 minutes
Cook time35 minutes
Total time59 minutes
I never meant to make this cake, but boy am I sure glad I did! It’s light, airy, bright and perfect for Spring. It’s also fun to make but even more fun to eat! Go make this delicious cake today!
This recipe is adapted from the recipe for Sponge Cake from the Jovial Einkorn cookbook. The filling and frosting are my own.
Ingredients
Cake
- butter, for greasing the pans
- 240 grams all-purpose einkorn flour
- 10 ea large eggs, separated, room temperature
- 300 grams maple sugar
- 1 tsp sea salt
- 1 ea lemon, zested
Filling
- 1 pint strawberry jam
Frosting
- 8 oz grass-fed butter, softened
- 1 lb powdered sugar
- 1/2 ea lemon, juice
- 1 tsp vanilla bean paste, or dash of vanilla extract
- handful cherry blossoms, for decoration
Instructions
Cake
- 1
Preheat the oven to 350 degrees F. Place an 8-inch cake pan on top of a piece of parchment paper. Trace around the edge of the pan with a pen, until you have a complete circle. Repeat for all three cake pans. Rub the bottom and sides of the three pans with butter and place your parchment paper circle inside the pans at the bottom. It should fit the space perfectly.
- 2
In a stand mixer fitted with a whisk attachment, add egg yolks, 200 grams of the sugar, the salt and lemon zest and whip on medium-high for 3 minutes or until thick and pale yellow. Pour the mixture into a large bowl.
- 3
Thoroughly clean and dry the mixer bowl and whisk. Add the egg whites to the bowl and beat on medium for 1-2 minutes or until the whites hold soft peaks. While the mixer is running, add remaining sugar and beat until stiff and glossy. Should take a few minutes.
- 4
Fold a third of the whites into the yolk mixture. Sift the flour into a small bowl, then sift and fold half the flour into the yolk mixture. Fold in another 1/3 of the whites, then the rest of the flour, and finish with the rest of the whites.
- 5
Pour the batter into the cake pans. Bake for 35-37 minutes until the center of the cakes spring back when you press on them. Mine took exactly 35 minutes. Do not open the oven to peek while the cakes bake! The cake will rise in the heat and deflate a little once out of the oven. Let the cakes cool in the pan for 10 minutes and then turn out onto a cooling rack to cool completely.
Frosting
- 1
Add 8 oz. of softened grass-fed butter, 16 oz. powdered sugar, lemon juice and vanilla to your mixer bowl and attach the whisk attachment. Whip until smooth. Do not frost your cake until it is entirely cool!
- 2
To frost your cake: Using an offset spatula, spread a tiny dot of frosting on the cake stand or plate you plan to use. Stick your first cake on top of the frosting. This will secure your cake. Then add your strawberry jam on top of the first cake and spread evenly. Add your second cake on top, slicing off the very top to make it flat if needed. Spread another layer of strawberry jam and add the third and final layer.* Make sure your final layer has a flat top.
Fill a tall cup with hot water and set it next to your cake stand or plate. You will use this to clean off and heat your offset spatula so you can make the frosting smooth. Place a large glob of frosting on the top layer of cake and smear to cover the cake. Then grab smaller globs of frosting and smear them on the sides of the cake. You don’t have to precise with this, just get it covered. Once the coverage is how you like it- I like mine pretty rustic and sometimes do a “naked’ cake- you can heat your spatula in the hot water and smear it smooth. Smooth out all frosting as desired.
Once your frosting is done, top with edible flowers. I used cherry blossoms from the trees in our orchard. Now…ENJOY!
*I actually just did two layers for the cake pictured and then frosted the third for my kiddos. They didn’t mind a bit!
Notes
You could easily half this recipe and just slice your cake in half to make the layers, but my motto is always “Go big or go home,” at least when it comes to cake!
Keywords:Einkorn, Spring Cake, Spring Desserts, Healthy Sweets, Sponge Cake, Cake, Lemon, Strawberry
Give it a try!
Are you going to try this recipe!? Have you made sponge cake before? How’d it go?
Be sure to pin this recipe using the image below so you don’t forget to make this cake for Spring. And leave a comment below with your sponge cake experience- even if it’s just giggling along to GBBO. Any other Paul Hollywood lovers out there!?
Kali
About Me
Hi! I’m Kali. Oregon mama, farmer’s wife and creator of the Potager book and blog. Join me and as we cook and garden the seasons!