This raspberry ripple sandwich is a lovely, dreamy mix of sweet whipped cream, tart raspberries, and crispy toasted bread.We all know that iconic scene from Friends (I feel like the word “iconic” has become far too commonplace, don’t you? Everything is iconic these days. “Name a more iconic duo, I’ll wait” and so on. But this scene really is iconic.) where Rachel messes up the trifle at Thanksgiving and puts beef sauteed with peas and onions as one of the layers. Everyone naturally hat…