If you've ever enjoyed a peanut butter and banana sandwich you will love this cake icing. Use it to fill a plain yellow cake.
First off, I used this recipe to "frost chocolate cupcakes". I was unable to give this a 5 star rating without modifications. The recipe does not state the margarine is too be room temperature or softened before mixing. I assumed with most recipes that is how it should be to cream with sugar. I don't use margarine so I used butter in it's place. After seeing the amount of powdered sugar in this recipe I decided to use ALL NATURAL peanut butter. I RECOMMEND this as the frosting was still very sweet. Also, I added the mashed banana *into* the frosting. The frosting tasted delicious but was slightly runny for cupcakes, so I put in the fridge for 1 hour and it was much easier to work with. THANKFULLY, the taste of this frosting *saved* the cupcakes because they were not good at all. This was so good, I didn't even frost all the cupcakes and we ate the frosting out of the bowl! This frosting REALLY DOES taste exactly like a PB and banana sandwich! I will definitely use this recipe again. (Special thanks to *Cookies* from the Recipe Exchange for recommending this recipe to me)! - 06 May 2008 (Review from Allrecipes USA and Canada)
with slight alterations this is now a five star frosting. instead of milk use heavy whipping cream. beat butters and shortening till light and fluffy then add extracts (i used banana instead of vanilla) then add 3 tbls heavy cream and beat untilstiff peaks form, add 3 cups confectioners sugar 1 at a time until creamy. this frosting will pipe beautifully onto cupcakes and has awesome flavor, its definatly a keeper!! - 13 May 2011 (Review from Allrecipes USA and Canada)
I thought this was going to be messy/runny, but it worked out well. And the flavor was dynamite with a moist banana cake! - 10 Oct 2011 (Review from Allrecipes USA and Canada)