Coffee and Walnut Cake with White Chocolate Frosting

I was asked to make a birthday cake for a friend this week and I was more than happy to do so - especially as I was being given dinner as part of the deal. The brief was chocolate or coffee and walnut. I went one better and made a cake using all three! This is a 'proper' cake - grown up, not too sweet and perfect in civilised company. We ate it with wine while watching dubious Harlem Shake videos but it could be grown up if you wanted it to be.

The icing and filling is amazing. Nigella's blonde icing is truly a thing of amazingness. Just make sure you use a very good white chocolate as the cheaper stuff can be too sweet. Tesco have just brought out a cooks chocolate range which I think it very good.

Ingredients
450g butter
225g caster sugar
4 large eggs
200ml strong fresh coffee, cooled
4 tsp cocoa powder
225g self-raising flour
175g chopped walnuts (plus extra to decorate)
200g white chocolate (good quality)
50g butter
200ml crème fraiche (the original recipe says 220ml but it comes in 200ml tubs so that's what went in)
100g icing sugar

1.    Preheat the oven to 190°/GM5.

2.    Cream the butter and sugar until light and fluffy. Then add the eggs in one at a time making sure you whisk well each time.

3.    Add the coffee and then the flour with the cocoa sifted in on top. Whisk well but don’t panic if it looks a little bit like scrambled eggs as this may curdle but it won’t matter once it’s baked.

4.    Fold in the walnuts and divide the mixture between two shallow tins that have been well greased – ideally put some baking paper on the bottom.

5.    Bake for 25 minutes. Now this makes quite a delicate cake so I’d suggest cooling completely in the tins. I made mine the day before they were needed and by the time I turned them out it made become more robust and didn’t break when turning out or sandwiching together. However you’re going to cover this in frosting so if it breaks just weld it together with that.

6.    Melt the chocolate with the butter in a bowl over a saucepan of simmering water.

7.    Cool a little once melted, mix in the crème fraiche and the sift the icing sugar on top and mix in as well.

8.    Leave in the fridge for about 20 minutes and then use half to sandwich the two cakes together and use the other half to ice the top (you could do the sides but I was in a rush due to coming home late because the Central line was on the blink). Decorate with walnuts if you like and serve.