Heavenly hash cake is super easy to make (no mixer and just one bowl!) and it’s always a total crowd-pleaser!
When I was doing keyword research for this post I came across a lot of recipes for the other kind of hash cake. The kind made with substances my parents would be decidedly un-proud of me for consuming.
If you’re looking for that kind of hash cake, you’ll be sorely disappointed with this recipe.
But if you’re looking for a delicious chocolate cake filled with walnuts and topped with marshmallows and chocolate glaze then you’re in the right place! Gooey, sweet, and a little crunchy, this cake is totally addictive. I dare you to stop at one piece!
Why you’ll love this heavenly hash cake:
- You don’t need a mixer! Just a bowl and a spatula.
- It takes less than 15 minutes to make (not including baking time).
- It’s so easy anyone can make it successfully!
What is heavenly hash cake?
It’s a simple, brownie-like cake that’s topped with marshmallows and chocolate glaze. I’ve seen heavenly hash cakes made with cake or brownie mixes before but this version is entirely from scratch. (Yet just as easy!)
Heavenly hash cake is usually made with walnuts or pecans but if you don’t like nuts in your desserts just leave them out. No prob!
How to make heavenly hash cake
Combine sugar, melted butter, eggs, and vanilla in a large mixing bowl and stir with a rubber spatula until smooth. (Be sure your butter isn’t too hot or it will scramble the eggs!)
Mix in cocoa powder, baking powder, and salt. Stir vigorously to eliminate lumps; cocoa powder tends to be clumpy.
Fold in the flour until just combined, then fold in walnuts (or pecans). Scrape the batter into a greased 13- by 9-inch baking pan and bake until a toothpick inserted into the center of the cake comes out with just a few crumbs.
Top the cake with mini marshmallows and return it to the oven for about 2 minutes—until the marshmallows have puffed a little and begun to melt into each other.
While the marshmallow-topped cake is in the oven. stir together powdered sugar, cocoa powder, evaporated milk, melted butter, and a little salt. Take the cake out of the oven and pour the glaze over the marshmallows as evenly as possible.
You can’t spread the glaze without smearing the soft marshmallows, so just do your best to cover the whole cake. Let the cake sit until the glaze sets, then slice and serve. And be transported to heaven; I think that’s where the name comes from.
See how easy that is? Truly, if you can stir (and you definitely can) then you can make this cake.
And you know what’s even easier than making a heavenly hash cake? EATING IT!
Betcha didn’t see that coming 🙂
A few more easy desserts
Graham Cracker Candy
White Chocolate Peanut Butter Balls
Strawberry Lemonade Cake
Kahlua Bundt Cake
3-Ingredient Peanut Butter Fudge
This heavenly hash cake is easy to make and doesn't even require a mixer, just a bowl and a spatula. Plus, it's a total crowd-pleaser!
- 2 cups granulated sugar
- 1 cup unsalted butter melted
- 4 large eggs
- 2 teaspoons vanilla extract
- 1/4 cup unsweetened cocoa powder
- 2 teaspoons baking powder
- 3/4 teaspoon salt
- 1 1/2 cups all-purpose flour
- 1 cup chopped walnuts or pecans
- 1 10-ounce bag mini marshmallows
- 3 1/2 cups powdered sugar
- 1/4 cup unsweetened cocoa powder
- 1/2 cup evaporated milk
- 4 tablespoons unsalted butter melted
- 1/4 teaspoon salt
- Preheat the oven to 350 degrees. Spray a 13- by 9-inch baking pan with cooking spray and set pan aside.
- Combine the sugar, butter, eggs, and vanilla in a large mixing bowl and stir vigorously with a rubber spatula until well combined. Add the cocoa powder, baking powder, and salt and stir vigorously until smooth. Scrape down the sides and bottom of the bowl and stir again briefly,
- Fold in the flour until just incorporated, then stir in the nuts.
- Scrape the batter into the prepared pan, smooth the top, and bake 27 to 32 minutes, until a toothpick inserted into the center of the cake comes out with just a few crumbs.
- Remove cake from the oven and sprinkle the marshmallows over the top. Return to the oven for 2 to 2 1/2 minutes, until the marshmallows have puffed up and melted together just a little.
- While marshmallow-topped cake is in the oven, stir together the powdered sugar, cocoa powder, evaporated milk, and butter, and salt until very smooth. Remove cake from the oven and pour the topping over the hot cake.
- Let the cake cool for at least 1 hour (cooling it fully to room temperature makes it much easier to cut), then slice and serve.
Uneaten cake can be stored, loosely covered, at room temperature for up to 2 days.
Corrie Duffy says
I tried this recipe of heavenly hash cake as I felt tempted seeing its picture. However, I felt that it is very sweet according to my taste. So, next time, I will try it with less sugar and more marshmallows. I suggest that busy people having less time to cook can make it with chocolate cake mix which will save them a lot of time.
Mimi says
You could still add hash to your hash cake! 😉
Marissa says
I would literally devour this cake! Heavenly Hash was one of my favorite ice cream flavors as a kid and rocky road is a favorite candy…so THIS CAKE makes my mouth water!
Liz says
Oh, my. This is perfect for my family, especially the baker who likes easy desserts 😉 So yummy!
Marie says
Ok, mind blown! I’ve never heard of hash cake (and this is the only kind I’m interested in 😂). This is totally something I would inhale. I love the glaze mixture for the top too.
John / Kitchen Riffs says
I have a copy of _The Alice B. Toklas Cookbook_ which contains the recipe for her famous hash brownies. They’re kinda sorta like cake, aren’t they? Anyway, your Heavenly Hash Cake looks terrific — thanks.
Cheyanne @ No Spoon Necessary says
LOL! When I saw the title hash cake I was definitely thinking of the other kind of hash and my first thought on that was, I bet that tastes like dirt. Needless to say I was PLEASANTLY surprised to see THIS cake!!! This is gorgeous and I bet it tastes even better than it looks (and nothing at all like dirt. lol). Send napkins – I’m drooling!!!
Kelsie says
Thank you, Chey!
Kelly | Foodtasia says
This Heavenly Hash Cake looks so delicious! I love all the gooey, crunchy, chewy textures in it! It would definitely be a lot more addictive than that other kind of hash cake! 🙂
Kelsie says
Thank you, Kelly!
Carlee says
That does look heavenly ( and sinful!) and now I’m hungry! I suppose I better get to the kitchen and start baking!
Kelsie says
Thank you, Carlee!
Ben|Havocinthekitchen says
Well I hope when you’re referring to heaven, it’s not literally (However, I wouldn’t surprise as this cake is loaded with all the delicious (and sweet) things which might cause a sugar coma which might lead…just some black humor! This cake might be easy to make with just a handful of simple ingredients, but it looks absolutely divine…hehe again…but you started it first! 🙂 Besides there are nuts in it, and anything with nuts cannot be bad, right?
Kelsie says
Haha! Thank you, Ben!
Mary Ann | The Beach House Kitchen says
One bowl?! I’m totally in! This is the kind of dessert I need in my arsenal all summer long when I’ve got company out the wazzoo! Can’t wait to give this one a try Kelsie!
Kelsie says
I totally agree–we all need those easy go-tos! Thank you, Mary Ann!
Laura says
I had totally forgotten about “Heavenly Hash” (the food kind). This cake looks amazing, and I love a quick-to-fix dessert for those days you have a chocolate craving. Which, for me is every day. I love this recipe, Kelsie – Pinning!
Kelsie says
Thank you, Laura!
Kelly @ Kelly Lynn’s Sweets and Treats says
Oh wow. I have never seen anything like this before but it definitely looks heavenly and easy to make. I’m drooling over here Kelsie!!!
Kelsie says
Thank you, Kelly!
Katherine | Love In My Oven says
No mixer and one bowl is MY kind of dessert! Quick, easy and delicious. Count me in! This would be so great to bring along to a party, or funeral..haha!! Yum!! Have a great week, Kelsie!
Kelsie says
Thank you, Katherine!
annie@ciaochowbambina says
No mixer? Just one bowl? I’m in! Not to mention these flavors which are too scrumptious!!! Pinned!
Kelsie says
Thank you, Annie!
David @ Spiced says
You know, I don’t think I’ve ever known exactly what heavenly hash is. Now I know! And I’m pleased to see that it doesn’t include any suspicious herbs. Haha! I love walnuts in chocolate, and I’m thinking this cake needs to get shoved into my face pretty soon. Looks delicious, Kelsie!!
Kelsie says
Haha! Thanks, David!
Kim Lange says
Heavenly hash is my fave! I loooooooooooooove this so much! Pinning!
Kelsie says
Thank you, Kim!
Milena says
Absolutely a recipe I can master:) You bet I’ll load mine with walnuts, can’t leave them out. Pinned and will try soon!
Kelsie says
Thank you, Milena!
Dawn says
Lol! I’ve never heard of this before, but could totally get behind, especially with no mixer and one bowl! It is definitely heavenly indeed! Pinning for sure 🙂 Happy Monday, Kelsie!
Kelsie says
Thank you, Dawn!
Leanne | Crumb Top Baking says
Heavenly hash ice cream used to be my favourite as a child! I haven’t had it in years, and this took me right back! This cake looks delicious Kelsie! A piece with my morning coffee would be perfect right now! Happy Monday!
Kelsie says
Thank you, Leanne!