Polish Black Cake with Whipped Mocha Frosting #SundaySupper

polish black cakeMy mom gave me this recipe. I just thought I should put that right out there. That way, you will know how truly good this is. My mom is a GREAT cook. She is also a fussy cook. Always follows a recipe to the letter. Always buys the best ingredients. Stretches herself and makes complicated, hard to make, interesting dishes.

So when she happens upon a great recipe and tells me, “You have to make this recipe, it is SO easy.” Seriously. You told me Beef Bourguignon was easy. By the way…It isn’t. I can’t even spell it.

But in this case…In this cake-case, she wasn’t lying. This recipe IS so easy. For what you get at the end, it seems like it should be really involved. I got, “mmmmmmms” and “ooooooooooos” and “Mom this frosting is SO good.” Well, then. I guess this one’s a keeper.

Actually my mom gave me the cake recipe, but the recipe for the frosting is mine. So is the adding coffee to this cake instead of hot water like it originally called for. Coffee anything is my #1 favorite thing usually, and especially when it’s paired up with my 2nd favorite thing, chocolate. So I had to take it there: to Mocha. YUM.

A homemade cake from scratch is like pure LOVE. It takes just a little longer than opening a boxed version to whip this lovely up. Seriously. You must make this. And the frosting. Well, you don’t have to make it. The cake is super tender and chocolately without the frosting already. Just dust with some powdered sugar and call it dessert. IF you are feeling fancy, serve it like my mom does, with homemade hot fudge drizzled over and a scoop of vanilla ice-cream. But for me, cake needs  a topping, or it’s just breakfast: AKA a muffin. So I add the frosting every time.

Here is the play by play:

Butter and sugar a cake pan:

polish black cake

See that? that is a nicely buttered and sugared cake pan!

I make the frosting right away so it has time to cool. Just heat some milk then pour it over the chocolate chips and add in some coffee crystals. To those of you that are fancy…Go buy some instant coffee. Some of us, coffee-desperadoes, always have coffee on hand for emergencies. We NEVER want to run out. Anyhoo…Once the chocolate gets melty, stir it up until it’s nice and smooth, and then cool until firm. Then whip until creamy. Done.

whipped mocha frosting

whipped mocha frosting

While you wait for the frosting to firm up, you make the cake:

Mix the dry:dry ingreddients for polish black cake

With the wet:polish black cake

And mix:polish black cake

Pour it into your buttered pan, and bake for about 1/2 an hour. Cool and then frost… and enjoy!

polish black cake

It happens that fast.

Here’s the recipe:

Polish Black Cake with Whipped Mocha Frosting #SundaySupper

For an easy to make scratch cake, this Polish Black Cake is delicious all on it's own. But to make it truly special, I add my Whipped Mocha Frosting. Over the top YUM!


  • 2 cups all purpose flour
  • 1 cup cocoa powder
  • 2 cups sugar
  • 2 tsp. baking soda
  • 1 tsp. kosher salt
  • 2/3 cup canola oil
  • 2 tsp. vanilla
  • 2 beaten eggs
  • 2 cups hot coffee, or (2 heaping tsp.decaf crystals dissolved in hot water)
  • For the Whipped Mocha Frosting
  • 1 cup semi-sweet chocolate chips
  • 3/4 cup heavy cream
  • 2 Tbsp. coffee crystals (I used decaf)


    To make the cake:
  1. Preheat the oven to 350*
  2. Butter and sugar a 9X13 metal pan.
  3. In a large bowl mix all the dry ingredients: flour, sugar, cocoa, baking soda, and salt. Whisk together to combine completely. Set aside.
  4. In a separate bowl mix the wet: oil, vanilla, eggs, coffee. Whisk until combined.
  5. Add the wet to the dry ingredients and stir until combined.
  6. Add this to the buttered pan.
  7. Bake for 25-35 minutes until a toothpick inserted into the center, comes out clean.
  8. Remove to a rack to cool.
  9. To make the frosting:
  10. Measure out 1 cup (8oz) of chocolate chips. Put them in a heat-safe bowl.
  11. Heat the heavy cream on the stove until boiling. Turn off the heat and stir in the 2 Tbsp. granulated coffee powder. Pour this over the chips. Let sit a minute to soften them up. Stir until the melted chips and cream is smooth.*(see note)
  12. Let the mixture sit in the bowl, covered at room temperature for 4 hours or you can keep it in the refrigerator until it’s firm. Once it’s firm, you can beat it for 2 minutes with a hand-mixer or in a stand mixer, until fluffy, and then spread this on your cake once it's cooled. YUM.


*For the frosting, you can just pour the melted chocolate and cream mixture over the cake at this point. It firms up to make a delicious glaze. I use it this way for frosting on brownies.Or you can let it firm up and then whip as the recipe suggests.

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polish black cake

I am clearly obsessed. I love mocha and I love coffee. And I am not alone!The Sunday Supper Bloggers are honoring the great Java beverage, by offering up some awesome recipes that contain coffee in them (and not all are chocolate!) that I think you will love. Big thanks to Wendy Hammond from Wholistic Woman blog for hosting this week.  Check them out:






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14 thoughts on “Polish Black Cake with Whipped Mocha Frosting #SundaySupper

    1. hardlyagoddess@gmail.com Post author

      I love decaf instant added to cold coffee and a banana and protein…and maybe a squirt of chocolate syrup. Yes. Post workout only but YUM! Instant coffee happens weekly at least in our house in this way!

  1. lk529

    This looks a lot like one of my grandmother’s recipes. I love that you used coffee instead of water, though. I’ll have to try that next time!

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