I'm doing a monkey theme cake and want the filling to be banana flavor. How do I go about adding a box of banana pudding to some buttercream?

Has anyone done this?

Does anyone have any idea on banana filling? It needs to be stable to be left out for an hour or so.

Thanks in advance.

I found this recipe awhile back. I never tried it so I'm not sure how stable it will be. I hope it will work for you. Jaime
1 cup Milk
1 package Instant Pudding (Small)
1/2 cup Butter/Margarine
1/2 cup Shortening
1 cup Powdered Sugar
1/2 teaspoon Vanilla

Mix together 1 cup milk and 1 box of pudding and let stand.
Mix together butter, shortening, powdered sugar and vanilla thoroughly.
Add both mixtures together and blend well. Will ice 2 9-inch cakes.

That sounds so yummy, I think I will try it too!

You could also try adding banana extract to your buttercream. I have done this before and it was really good.