This easy chocolate sheet cake is gluten-free and lightened up with Greek yogurt in place of butter or oil, but that doesn’t stop it from being super moist and chocolatey!
The hardest thing about making this sheet cake was trying to figure out what to call it. Well, that and waiting for it to cool so that I could put frosting on it.
See, I was originally experimenting with a brownie recipe that turned out really, really tasty, but a little too cakey for a brownie. So I did what any reasonable human being would do – I slapped some frosting on it and called it a cake. An easy chocolate sheet cake, to be more exact.
This guy is super easy to make and lightened up with Greek yogurt in place of butter or oil. I mean, healthier cake? Why not?! It’s still nice and moist and suuuuuuuper chocolatey.
How To Make Easy Chocolate Sheet Cake
It’s honestly so easy that I almost feel silly explaining it here, but you have a few options so let’s go over those.
- You can make the cake in either a blender or a mixing bowl depending on what you prefer. I like the blender method because it’s quick, easy, and ensures a really smooth batter, but you can mix everything in a bowl if you don’t have faith in your blender or don’t want to go through the hassle of cleaning it.
- If you do choose the mixing bowl method, you’ll need to replace the oats with about 1/3 cup (40 g) pre-ground oat flour since they won’t be getting broken up. I’d also recommend mixing the dry ingredients together before adding the wet ones.
- I used coconut palm sugar for my sweetener, but you can replace that with brown or cane sugar as well. Maple syrup will also work, but it will change the consistency of the cake a little bit.
- If you need this cake to be nut-free, replace the almond butter in both the cake and frosting with soy nut butter.
- I really recommend lining your baking pan with a sheet of parchment paper and leaving a few inches of overhang on the sides. This will allow you to lift the cake out of the pan and make removal a lot easier.
- Let the cake cool completely before frosting it. If you put the frosting on a hot cake it’ll get runny and possibly melt right off.
- The frosting is stable enough to be fine sitting at room temperature for prolonged periods of time. I still recommend storing the cake in the fridge just because of the yogurt in it.
- Taste the frosting before frosting the cake, both for taste and consistency. I wanted it to have more of a dark chocolate feel, but if it’s not sweet enough for you, add another tablespoon of maple syrup. If the taste is fine but you want it a little thinner, add almond milk one tablespoon at a time before desired consistency is reached.
Okay, But What’s It Like?
Really, really, really chocolatey. And after it’s spent some time in the fridge, the frosting becomes a lot fudgier, adding to the decadent feel.
And I guess that’s the thing… This cake feels really indulgent and decadent despite being lightened-up. So you really can have your cake and eat it too.
It’s gluten-free as long as you use gluten-free oats, and you can easily make it nut-free and refined sugar-free with some simple substitutions.
Happy eating!
I’d love to know if you make this recipe! Leave a comment and rating down below to let me know what you think, and subscribe to our mailing list to receive new recipes in your inbox!
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easy chocolate sheet cake
- Total Time: 45 minutes
- Yield: 9 slices 1x
Ingredients
For the cake:
- 1/2 cup (40 g) oats, gluten-free if needed
- 1/2 cup (115 g) plain 2% Greek yogurt
- 1/4 cup (64 g) almond butter
- 2 large eggs
- 1/2 cup (40 g) unsweetened cocoa powder
- 1/2 cup (100 g) coconut palm sugar*
- 1 tsp vanilla extract
- 1 tsp baking powder
- 1/2 tsp baking soda
For the frosting:
- 6 Tbsp (30 g) unsweetened cocoa powder
- 1/4 cup (57 g) plain 2% Greek yogurt
- 2 Tbsp (32 g) almond butter
- 3 Tbsp (90 ml) maple syrup
- 1 tsp vanilla extract
- optional: another tablespoon of maple syrup or almond milk***
Instructions
Make the cake:
- Preheat your oven to 350°F (176°C) and prepare an 8 x 8 (20 x 20 cm) baking pan by lining it with a sheet of parchment paper, leaving a few inches of overhang on the sides to allow for easy removal. Set aside.
- Add the oats to a high-speed blender and process on high until they have broken down into the consistency of a fine flour, about 10 seconds.** Add the remaining cake ingredients and process on high until the batter becomes smooth.
- Pour the batter into your prepared baking pan, using a spatula to distribute it evenly. Bake for 25 – 30 minutes, until a toothpick inserted into the center comes out clean. Remove the cake from the oven and let it cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely.
Make the frosting:
- Add all of the frosting ingredients to a medium-sized bowl or the bowl of a stand mixer and, using your stand or hand mixer, mix on high until all the ingredients are well combined and smooth.
- When the cake is completely cool, use a knife or spatula to spread the frosting on top of it.
- Store the cake in an airtight container in the fridge for up to 5 days, or freeze for up to 3 months.
Notes
* You can also use brown sugar.
** Alternatively, you can replace the oats with 1/3 cup (40 g) of oat flour and mix everything by hand in a large bowl. Just whisk the dry ingredients together, then add all the remaining ingredients and mix until a smooth batter forms.
*** If the frosting isn’t sweet enough for you, add another tablespoon of maple syrup. If it’s sweet enough but you want it thinner, add almond milk one tablespoon at a time before desired consistency is reached.
To make this cake nut-free, replace the almond butter in both the cake and frosting with soy nut butter.
- Prep Time: 15 mins
- Cook Time: 30 mins
Looking for more chocolate recipes? Try one of these!
Flourless Double Chocolate Brownies
Easy Vegan Chocolate Muffins
Flourless Chocolate Banana Bread
Flourless Sweet Potato Brownies
No Bake Brownie Batter Truffles
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You see, I was tinkering with with a brownie recipe, and the results were delicious, but they ended up being a bit too cakey to be considered a true brownie. As any sane person would, I added some icing and pretended it was a cake. A simple chocolate phrazle sheet cake, to be more specific.
thanks, i’m gonna try it this weekend
Looks a great recipie
I can’t wait to try this recipe! The texture looks moist and yummy!
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out what to call it. Well, that and waiting mawalidub for it to cool so that I could put frosting on it.
It’s honestly so easy that I almost feel silly კალონკის ხელოსანი explaining it here, but you have a few options so let’s go over those.
This easy chocolate sheet cake is gluten-free and მაცივრის ხელოსანი lightened up with Greek yogurt in place of butter or oil, but that doesn’t stop it from being super moist and chocolatey!
What a nice recipe
Thank you for sharing this
this my today’s after meal.
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Use your fingertips to gently massage the cleanser into your skin for about 30 seconds.
Use a cleanser that’s designed for your skin type. For example, if you have sensitive skin, use a fragrance-free cleanser that doesn’t contain alcohol.
Hi! Could I replace sugar with unsweetened applesauce or do half and half to cut the sugar down. I’m planning on making a big sheet cake which I would use the 3x correct? I also bought yogurt with honey, do you think that would work ok? Thank you for any input!
It looks amazing! My kids are allergic to cow’s milk 🙁
Can I substitute Greek yogurt for something non dairy?
A non-dairy yogurt will work! I’ve tried some coconut-based ones from Daiya, Chobani, and So Delicious that were really good. Applesauce will also work for the cake, but probably not for the frosting.
Can I sub the eggs with flax eggs (14 gr of ground flaxseed + 90 ml water) or banana or applesauce and with how many grams? Thank you for your wonderful recipes.
Hmm. I don’t know if I would do 2 flax eggs, but 1 flax egg and half a mashed banana would probably work fine. Either that or a whole mashed banana. If you try it, I’d love to know if it works!
Can I sub the eggs with flax eggs? (14 gr ground flaxseed with 90 mls of water)
This looks delicious, could I replace the Coconut Sugar for Rapadura sugar please
Yes that should be fine!