This recipe for mint chocolate sheetcake is based on the chocolate mayonnaise cake already on my site. While the modifications to the original cake are minimal, adding just a touch of mint oil changes the entire character of the cake, so I felt it needed its own post.
Don’t miss the frosting either. Swiss mint buttercream is perfect on this cake, but would also be wonderful on any chocolate or vanilla cake, or whenever a little shot of mint would be welcome.
For ease of browsing, here are all of my cake recipes. Thanks for stopping by!
Watch my easy chocolate mint sheet cake web story here.
Why Not a Layer Cake?
- Easy to make–no dividing the batter between pans
- No turning out of the pan
- No stacking or icing the sides
- Takes less time
Mint Oil or Mint Extract?
This is a personal preference, but I like to stick to mint oil. Mainly because the mint flavor is extremely pure and concentrated so you only need a few drops to get wonderful mint flavor.
If all you have is mint extract, expect to need 1/2 to 1 teaspoon to get a nice mint flavor to shine through the chocolate.
If you use mint oil, you will only need maybe 4-6 drops.
What If I Want to Make a Layer Cake?
Oh, you absolutely can turn this into a layer cake by baking the batter in 2 8″ cake pans as opposed to 1 9″x 13″ pan.
Baking time will probably be reduced by about 10 minutes.
What Mixing Method Do You Use?
While the vast majority of American style cakes are made using The Creaming Method–cream butter and sugar, add eggs 1 at a time, alternate wet and dry, beginning and ending with wet–the mixing method for this cake is a little bit harder to classify.
The first step in making this cake is to whip eggs and sugar together, which is also how the egg foam method starts.
Then, you beat in the fat (mayonnaise, in this case), and lastly, you alternated dry-wet-dry-wet-dry ingredients.
So I’m not sure there is one mixing method that this sheetcake really falls under. It’s sort of a hybrid between the egg foam method and the creaming method.
What’s the Texture?
The wonderful news about this cake is that it is super moist and stays that way for days.
It’s the kind of cake where, if crumbs fall off, you can pick them up by pressing down on them with the back of your fork. Fudgy.
And because it is not a butter cake, it stays nice and soft in the fridge, too.
The crumb is not too tight, is very even, and slices beautifully.
More Easy Cake Recipes
My most recent favorite easy cake is my butterscotch sheetcake. It’s a wacky cake, so it doesn’t contain eggs. It’s also a lovely, moist cake, so you may want to give it a try.
If you’re a pound cake fan, consider taking my brown sugar cinnamon pound cake for a spin. Wonderful flavor and a dreamy glaze too.
This chocolate stout cake is also excellent. It’s pretty much a one-bowl cake, and you can pair with with the burnt caramel buttercream or go with a cream cheese frosting with a touch of Bailey’s in it for some kick.
About the Video
The video for this recipe is a live video, so it’s long–maybe 22-23 minutes long.
It takes you through the whole process of mixing the batter, showing what the ribbon stage looks like, and all the steps you need to take.
While a “hands in pans” video is fun to watch and doesn’t take up much of your time, I think a real-time video best shows how to make something, what the batter should look like, etc.
If you do not want to watch the whole thing or don’t need to, you can always skip forward. But if you have any questions about making the batter, watching the whole video will be helpful.
If you do have some questions after watching the video, I’m only an email away, and I will respond and help you. Promise.
If you have questions about this post or recipe, don’t hesitate to get in touch. You can leave a comment on the post and I will get back to you within about 24 hours.
If your question is more urgent, please shoot me an email, and I will respond within 4 hours, unless I’m asleep.
A Note About Measurements
NOTE: Most of my recipes are written by weight and not volume, even the liquids.
Even though I try to provide you with volume measurements as well, I encourage you to buy a kitchen scale for ease of measuring, accuracy, and consistency.
I really hope you love chocolate sheetcake, you guys!
Thanks, and enjoy!
- 280 grams (2 cups) all-purpose flour
- 60 grams (3/4 cup) American cocoa powder
- 1 teaspoon baking powder
- 3/4 teaspoon kosher salt
- 400 grams (2 cups) granulated sugar
- 2 large eggs
- 240 grams (1 cup) full fat mayonnaise
- 4-6 drops peppermint oil (or 1/2-1 teaspoon of peppermint extract) depending on how strong a mint flavor you want
- 320 milliliters (1 1/3 cup) boiling water, (1 1/3 cup)
- Position your oven rack in the center of the oven. Preheat to 350F. Spray a 9"x13" rectangular cake pan with pan spray. Set aside.
- Sift together the flour, cocoa powder, baking powder, and salt. Set aside.
- In the bowl of your stand mixer fitted with the paddle attachment, beat the sugar and eggs on medium high speed until they reach the ribbon stage, about 5 minutes.
- Add the mayonnaise and mint oil or extract, and beat until smooth, scraping the bowl as necessary.
- With the mixer on low speed, alternate adding the sifted dry ingredients in three additions with the boiling water in two additions. Begin and end with the dry ingredients. Scrape bowl as necessary.
- Scrape the batter into the prepared pan and bake for 40-45 minutes or until the cake springs back when pressed in the center, the edges are just starting to shrink from the sides of the pan, and the internal temperature of the cake is between 195F and 200F.
- Remove to a rack to cool completely.
- Frost with your favorite frosting, but man is this good with mint Swiss buttercream!
You can freeze this cake, either frosted or unfrosted, for up to 2 months. I think it is easier to freeze by the slice if you have the room in your freezer. That way, you can take out the pieces you need to thaw them. Thaw either in the fridge (for the whole cake) or on the counter (for individual slices).
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Nutrition InformationYield 24 Serving Size 1 slice
Amount Per Serving Calories 151Total Fat 4.1gSaturated Fat 0.8gCholesterol 18mgSodium 150mgCarbohydrates 28.6gFiber 1.1gSugar 17.4gProtein 2.2g
The stated nutritional information is provided as a courtesy. It is calculated through third party software and is intended as a guideline only.
And there you have it, friends. I hope you enjoy this minty chocolate sheetcake as much as I do!
Thanks for spending some time with me today. Take care, and have a lovely day.
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