I'm sure there is a recipe somewhere out there, but this is a concoction I made up. To make the triple berry cream filling, I melted some strawberry jam (and strained the solids out of it), then melted some seedless raspberry jam and combined them in a small bowl. I then added a little Chambord (blackberry liqueur) until I liked the flavor (not too much alcohol), and let the mixture cool somewhat. I then placed about 1 cup (measurements are NOT exact) of the vanilla buttercream into a small bowl and added the berry mix until I was satisfied with the flavor and texture. I piped some of it around the top of the second layer and filled it with the rest, smoothing it with a small offset spatula until it was smooth. I put the top layer on the cake and crumb frosted it, put it in the fridge for a while to set, then frosted as usual. Hope this helps you! Thanks for asking!
P.S. If you make too much of the berry mixture, you can put it into a jar in the fridge. It will keep indefinitely.

Love your quilts and cake!

They are all very nice. Thanks for sharing them.

they are all very nice!!!!!!

Your quilts are beautiful! I really like the simplicity and colors of the flying geese quilt.  So glad you posted these.

Quilter and cake maker too! All great makes. Congratulations.

The quilts are beautiful and the cake looks yummy!

Love the quilts beautiful work.