Dense chocolate Guinness cake with buttercream for St Patricks Day

13 Mar


Chocolate Guiness cake

St Patrick`s Day is Friday March 17 and while the day marks a religious and cultural commemoration I believe there is always room for dessert.

That is why I created this easy, rich and dense chocolate Guinness cake with buttercream for St Patrick`s Day. This is a dark, not overly sweet cake that is perfect year-round, not just on religious holidays. It really is so easy to bake. The most important thing is ensuring it retains its denseness – you will need to watch the cooking time carefully. Overcooking the chocolate Guinness cake will result in a loss of denseness, which is central to the amazing taste of this cake.

The cake does not taste like stout – rather, the addition of Guinness adds a complexity to the flavour that marries so well with dark chocolate.

As always, the better the chocolate you use, the better the result of the cake. Using a compound chocolate will give you substandard cake where a bitter dark chocolate provides a lush, luxurious taste.

The buttercream is not strictly necessary – if you don`t feel like washing up another bowl feel free to dust the cake with sifted icing sugar.

This buttercream recipe is a simple icing / frosting recipe to keep up your sleeve to decorate cakes or cupcakes. Feel free to add a dash of b\vanilla bean paste if the mood strikes.

Chocolate Guinness cake for St Patricks Day.png



250 grams dark chocolate, chopped

200 grams butter

3/4 cups caster sugar

3 eggs

1/2 teaspoon vanilla bean extract

¾ cup plain flour

1 teaspoon baking powder

3/4 cup Guinness


Preheat oven to 180C degrees and grease and line a 20cm square deep baking tin with non-stick baking paper, leaving 3cm overhang.

Sift together the flour and baking powder; set aside.

Place chocolate and butter in a medium glass or ceramic bowl. Find a saucepan where the bowl will snugly nestle on the top and fill the pan with half a cup of water. Place bowl on top of pan and bring to a simmer, ensuring the water does not touch the bottom of the bowl.

Stir until the mixture is 80 per cent melted and incorporated then turn off the heat – the residual heat will melt the rest. Set aside to cool for five minutes.

Beat in the eggs, sugar, vanilla, eggs – one at a time – and stir until smooth and combined.

Stir in the beer and vanilla, then sift over the flour mixture and beat in, scraping sides of the bowl with a spatula several times.

Pour into the pan and bake for 35 minutes – the top should be firm and a skewer inserted should not have any wet batter sticking to it.

Cool in tin; when cold turn onto wire rack and decorate with buttercream.



125 grams unsalted butter, diced, at room temperature

¾ cup icing sugar

1-2 tablespoons milk

Beat butter in bowl of electric mixer fitted with whisk attachment until pale – about five minutes.

Sift over the icing sugar, then add the milk, one tablespoon at a time. You may not need it all.

Scrape down the sides of the bowl several times with a spatula.

When fully incorporated use a palette knife to spread over the top.



21 Responses to “Dense chocolate Guinness cake with buttercream for St Patricks Day”

  1. Gary Lum March 13, 2017 at 6:42 pm #

    Mmm…looks and sounds delicious. I’ll have to celebrate being part Irish this Friday and buy some cake 😋

    • The Hungry Mum March 16, 2017 at 4:31 pm #

      Buy cake? Sorry – I do not understand… This cake is a cinch to make. You can do it Gary!

      • Gary Lum March 16, 2017 at 4:36 pm #

        I finished baking in 1989!

      • The Hungry Mum March 16, 2017 at 8:06 pm #


      • Gary Lum March 16, 2017 at 8:09 pm #

        I may take it up again, I want to be in a house with an oven I like

  2. Chas Spain March 13, 2017 at 9:15 pm #

    Oooh that looks fantastic

    • The Hungry Mum March 16, 2017 at 4:36 pm #

      Was soooo good. All gone now 😦

      • Chas Spain March 17, 2017 at 8:52 pm #

        Happy St Pat’s Day – I hope you made another cake to celebrate :>

  3. Lisa @ cheergerm March 13, 2017 at 9:39 pm #

    Happy St Patrick’s Mrs H. Cake looks tops. To be sure, to be sure…

    • The Hungry Mum March 16, 2017 at 4:35 pm #

      If you`re lucky enough to be Irish, then you`re lucky enough 🙂

  4. Snapshotsincursive March 13, 2017 at 11:46 pm #

    Now you’re talking. Two pieces, please. (My husband wants one all to himself!) 🍓

  5. Deb_Larder&Life March 14, 2017 at 12:41 am #

    Ooh this looks and sounds delicious!!

    • The Hungry Mum March 16, 2017 at 4:33 pm #

      Cheers Deb! It was one of the best cakes I have made in recent times!

  6. Laura @ Feast Wisely March 16, 2017 at 11:04 am #

    Yum Hungry Mum I love the addition of Guinness – happy St Patrick’s Day!

    • The Hungry Mum March 16, 2017 at 4:33 pm #

      Thanks Laura!
      May your pockets be heavy and your heart be light,
      May good luck pursue you each morning and night x

  7. Antonia March 17, 2017 at 1:57 pm #

    The perfect St Patrick’s Day indulgence! Happy St Patrick’s Day!

  8. Sophie33 March 18, 2017 at 6:23 pm #

    My husband will love this cake! I will make it for him today! 🙂 MMMMMM!

  9. Sara | Belly Rumbles (@bellyrumbles) July 24, 2017 at 1:53 am #

    Okay, I have bookmarked this for next year to make the Irish hubby happy!

  10. The Hungry Mum March 17, 2019 at 7:43 pm #

    Reblogged this on the hungry mum.

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