Peanut butter chocolate birthday cake

I hadn't been asked to make a birthday cake for my young friend The Hurricane since 2012. I had assumed that her growing sophistication meant she was well and truly too grown up for my extremely rudimentary decorating skills.

However, this year she asked if I would. Of course I said yes. We brainstormed over drinks (prosecco for me, water for her). Chocolate was a given. I offered ideas for additional flavourings and she scorned all thoughts of raspberries or apricots but decided that peanut butter and caramel would be good.

Peanut butter buttercream swirled with caramel

It was always going to be the Be-Ro Milk Chocolate Cake. It's obedient, reliable, sturdy enough to slice and decorate and not overwhelmingly chocolatey. The Hurricane may be an unbearably grownup a-couple-of-days-from 12 year old, but she still doesn't like too much intense chocolate.

The rest was assembly really. The layers were sandwiched with Perfect Peanut Buttercream (astonishingly good. I used a smooth, organic peanut butter with salt but no added sugar), swirled through with some Carnation Caramel, then covered with more of the buttercream. I'd thought about putting some chopped peanut brittle in with the layers, but I thought The Hurricane's parents and orthodontist wouldn't thank me at all if I buggered her braces two weeks before Christmas.

Chocolate mirror glaze

Then I topped it with John Whaite's chocolate mirror glaze. I got the consistency a bit wrong with this one - I cooled it so it wouldn't melt off the butter cream but then it was too thick to flow easily. I liked the result of the dribbles showing the underlying buttercream though, so let's call it deliberate. It does have a gorgeously shiny finish though, and a rich chocolate flavour.

The final decoration was a bunch of gold sugar stars, white and dark chocolate stars printed with gold stars, and gold star sprinkles. Simple, but effective. When I delivered it, she was pretty darn pleased. I did have to issue a warning that the glaze would show if she attempted to eat any of the chocolate stars off it.

I asked them to send me a picture of the cross section - the lairs (as Mary Berry says) have held their definition very well. And they ate an impressive amount!