Easy One Bowl Chocolate Cake with Real Fudge Icing

One bowl chocolate cake with real fudge icing

What does "Chocolate Cake" mean to you?

Chocolate cake.  Don’t those two little words make your ears feel good? For me, they conjure up memories of many birthdays past. Of velvety cocoa flavor and rich, dark fudge icing.  Real fudge.  The cooked kind without so much as a grain of powdered sugar.  Not that I have anything against buttercream frosting, but sometimes you just want fudge on top of cake.

Still, even though chocolate was my favorite birthday cake flavor, I was on the constant lookout for what I deemed the perfect chocolate cake.  Because the one my mother made for me as a child was too simple.  It was just a plain square on a plate, no layers, no different fillings, no fancy decorations.  Just Plain. Chocolate. Cake.  With fudge icing.

40-year search for the perfect confection

So, I set out on a quest when I left home to find the perfect version of this basic American dessert. It would have many layers, various fillings and fudgy frosting. And it would be garnished with swirls of frosting, and maybe some chocolate curls for a little added decadence. It would be picture perfect, too, and something to inspire awestruck silence.

Mostly I was looking for a perfect recipe, so I could have chocolate cake any time I wanted, though ordering it in restaurants was part of the search.

Why is chocolate cake so hard to make?

What I found over the years was that, for the most part, commercial chocolate cakes are dry. Restaurant cakes, bakery cakes, supermarket cakes. Most just didn’t have the moisture content that I thought the perfect chocolate cake should have. However, a few were so dense as to be like chocolate bricks, heavy on the stomach, hard on the sweet tooth. So I quit ordering them.

On the other hand, the recipes I tried yielded, for the most part, nice cakes. Nice, but without that something extra that made me swoon with delight. I’d have a piece and enjoy it, and then I’d send the rest to work with my husband. Or take it to share with my co-workers. And the next time I’d want chocolate cake I’d try a different recipe.

I rarely had this problem with vanilla cakes rich with butter and eggs (my other favorite flavor), so yellow was the default flavor whenever I’d have to buy cake from someone else.  And that was the flavor that I made while my children were growing up.  (It’s the cake my grown daughter still requests every year for her birthday.)

And then it happened...

On my last birthday, it dawned on me that it had been there all along, nestled quietly in my mother’s overflowing recipe box.  It was right under my nose.  I had long since stopped trying to find a flashy, brassy, over-the-top, in-your-face glamorous recipe and realized just this year that the cake my mother had been baking all my life really WAS the perfect chocolate cake.  A single layer of moist cake with the intoxicating flavor of cocoa (as opposed to the heavier flavor of melted chocolate), finished off with a thin layer of cooked fudge on top. (Always too thin, in my opinion.)

My snobbishness evaporated upon first bite. No longer did my taste buds scorn that plain little square of chocolate on the plate. In fact, they lit up like 4th of July fireworks, demanding another piece even before the first piece was finished.

And I finally realized why it was always one little layer – it’s so delicate I doubt it could support multiple layers.

After a lifetime of searching for the perfect chocolate cake, the one that fails the resistance (can-I-eat-just-one-piece?) test was as close as my mother. 

And no, I can’t eat just one piece.  Because one piece leaves me wanting another.  And another.  But since I try to be ladylike, I settle for two pieces.  And call them dinner. (Unless I’m by myself, and then I’ve been known to eat three, sugar coma be damned.)

Image of the actual 60+-year old recipe card
Over 60 years old - it was time for a rewrite

Simple, but truly "food of the gods"

This recipe goes together very quickly, which is perfect if you want cake RIGHT NOW.  I’ve reworked it a bit to accommodate new bakers who might not understand what “put in oleo” means.  Or who might want a bit more clarity to “when bubbly all over.”

And while this is traditionally a one-bowl cake, I’ve added the step of sifting the dry ingredients in a separate bowl so there’s little to no chance of finding nasty lumps of baking soda in the chocolaty goodness. (Ask me how I know.)

My perfect chocolate cake with fudge icing


Preheat oven to 350.

  • 2 C sugar
  • ½ C shortening (I use butter flavored)
  • 2 eggs
  • 1 tsp. vanilla
  • 3 heaping Tbs cocoa (do not level)
  • 1 tsp. baking soda
  • 1/2 tsp. salt
  • 2 C flour
  • ½ C. buttermilk (see Notes)
  • 1 C boiling water

Sift flour, baking soda, salt and cocoa together in bowl – set aside.  Cream sugar and shortening until fluffy with a hand mixer.  Add eggs, one at a time, beating only until smooth.  Stir in vanilla.  Add milk and flour mixture alternately, starting and ending with flour mixture.  Scrape the sides of the bowl and beat a few more seconds. Slowly add boiling water while beating on low speed just until thoroughly mixed.  Pour batter into greased and floured 9×13 pan.  (See Notes)

Bake 30-35 minutes or until toothpick inserted in cake comes out barely clean.  If there’s a crumb or two of cake on it, that’s ok.  It’s ready. DO NOT OVERBAKE.

Set on cooling rack while you make the icing.

Icing (this makes a thin layer – the picture shows a double layer)

  • 1 ½ C sugar
  • Pinch of salt
  • 2 heaping Tbs. cocoa (do not level)
  • ½ C milk
  • 2/3 stick butter, cut in pieces (5 1/3 Tbs. to be precise)
  • 1 tsp. vanilla

Whisk sugar, salt and cocoa in saucepan until fully blended.  Whisk in milk then place over heat and bring to a full boil on stove top.   When mixture has come to a rolling boil, stop stirring and let boil for exactly 5 minutes, or until candy thermometer reads 235-240 degrees.  (Soft ball stage)

Immediately remove from heat, drop in butter pieces, and stir until smooth, then place in ice water bath, stirring vigorously until icing barely begins to lose its gloss. To test, drop some from the spoon onto itself and it will stay on the surface for a moment or two.  Immediately spread onto hot cake. This is real cooked fudge – it will set FAST.


  1. When making chocolate cake, I use cocoa instead of white flour when preparing the pan.  It looks nicer when the cake is cut.
  2. If you don’t have buttermilk (I never do), you can make your own. Put 1 Tbs. white vinegar in a one-cup measure, then fill with milk (preferably whole milk). Let stand a few minutes. It will turn thick and sour almost like magic.
  3. Do not overbeat or icing will get too thick to spread.  This takes a little practice, but it’s better to spread the icing too soon rather than too late.
  4. My mother left salt and vanilla out of her copy of the recipe, but both enhance the unique cocoa flavor, so I’ve added them back in.
Image of empty plate with cake crumbs, plus an empty glass that had been filled with milk
No need to count how many pieces had been on this plate. *ahem*

While my mother called this a Devil’s Food Cake, I simply know it as The Perfect Chocolate Cake.  I hope you will too.  It’s moist and keeps well for several days (if it lasts that long).

P.S. If you’re the type who likes a little cake with your icing, then double the recipe of icing.  I do when I want to go all out and treat myself to something extra indulgent. Which is every time. I’m still making up for all the years my mother’s icing was so thin you could see cake through it.

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Hi, I'm Shea!

Hi, I'm Shea!

Do you prefer handmade to store bought? Would you rather make something than buy it? If you want to tap into your inner creative genius and say, "Yes, I made that," stick with me. From greeting cards to soap to old-fashioned desserts "from my mother's recipe box," (sprinkled with tales of life as an almost-senior), you'll learn that handmade beats the socks off store bought!

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