Mars bar mudcake is one of those recipes I tried / experimented with one day & hubs absolutely love it. Almost every year, he’ll request it for his birthday. This year, I made it with a hot chocolate butter icing.
Once it is melted, I whisk in 6 eggs, one at a time & vanilla extract. After that, fold in 2 cups of self raising flour. I find it easier to fold in half a cup at a time. Sometimes, the mixture may be too thick so I leave out the remainder or add some milk but note that the mixture is meant to be gluggy.
Then in to the cake pan it goes & add in chopped up mars bars. I freeze them overnight before making the cake as it is easier to chop off.
Then let the cake sit & cool overnight.
For the hot plate butter icing, use 100grms of soften butter, 2 cups of icing sugar & 4 tablespoons of hot chocolate powder. Whisk together & ice the cake when cooled. Then leave it in the fridge to set until ready to serve.