When I was a kid (long time ago) my girlfriend's mom use to make a banana sheet cake (13x9) that had a thin layer of white frosting (buttercream?) and then a thicker layer of chocolate frosting. I have never been able to re-create it. Does anyone have any ideas? Thanks Fran, To achieve a "double" icing, you will want to chill the cake after the application of the first layer. Once this is firm, you may add the next layer without the 2 intermingling. Frank @ KAF.

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