I am having a horrible time with my buttercream! I am using the wilton recipe so I can have white-white icing, but it won't crust! I'm not the best at smoothing so I rely on the crust to smooth it out with parchment and it is not working. This recipe usually gives me no problem, but why this time? Any ideas welcome!

Add more pwd sugar

There may be too much butter and shortening that won't allow it to crust...You could try another batch and cut back on the shortening and butter and add more milk or water.

Is the humidity high or did you frost it frozen? These can both effect the time it takes to crust. If you used water to smooth it that will also make it take longer to crust. I agree w/bubblezmom add more powdered sugar. Kiddiekakes is also right. You may have too much butter and Shortening. Just add more powd sugar and that should save your batch you have made. Hope this helps!

Make sure you don't cover your cake while you are waiting for it to dry. I have actully dusted a cake with powder sugar to help it crust.

Thanks, I will try and dust it with pwd sugar. It is already on the cake so I can't add more pwd sugar now.

Thanks for all the ideas!