Waitrose or even Amazon if you can't find it in the supermarket. If you've got the time or inclination you can also make your own pumpkin puree using a recipe such as this one.
here. I really like the frosting and would certainly consider using it with other cakes. To make sure my cake wasn't wonky I also levelled the two bottom layers using a cake leveller which you can see above.
To finish off the cake I made some chocolate leaves which you can see in the second picture. They provided nice decoration and also added to the autumnal feel of the cake. The recipe for the cake and frosting can be found on the Country Living website.
If you're making a Halloween bake in the next couple of days then we'd love for you to enter it into our Calendar Cakes challenge. Calendar Cakes is hosted jointly here at Laura Loves Cakes and also by Rachel over at Dolly Bakes. Rachel is hosting this month so check out the details here.
I'm also entering this cake into The One Ingredient Challenge hosted this month by Nazima at Franglais Kitchen and alternately by Laura at How to Cook Good Food . The ingredient this month is pumpkin and squash.
Finally, I'm also entering into Simple and in Season which is hosted by Fabulicious Food and the guest host this month is also Nazima at Franglais Kitchen.