This is a slight variation on Dayle's recipe for the butter cream.
Use INSTANT vanilla pudding (according to package directions)
Add ONE tablespoon at a time and mix in well. When the pudding is all mixed in stop mixing, or the cream may separate.
Use icing (confectioner's) sugar instead of granulated - easier to mix.
You can also use Chocolate Pudding with some cocoa added in for a chocolate variation.
Joyce