The icing bag is a disposable plastic one. These are brilliant! I always found fabric icing bags horribly awkward to wash out. I got these after I had to throw my last one away and I'm definitely not going back!
As for the frosting, I whisked the butter and sugar with a little bit of milk. I've never thought to use milk before and it makes the frosting so much lighter. I used the quantities in Mary Berry's cupcake recipe (6oz butter, 12 oz sugar) but this was quite a bit too much. I now have a bag of frosting in the fridge... wonder what I could do with it?? :)
I dyed half the frosting a delicate pink and put the 2 colours side by side in the icing bag. I really like this effect but I should have used a deeper pink (you can't really see the two colours at all in the photograph).
I may have to make some more of these to use up the rest of the icing!
