Macaron 5: Vanilla Bean with Cassis Buttercream. So I wanted to make a purple macaron, purple is so pretty in cookie form and I had some black currant puree and I love the macarons that have matching filling so I went for it. These were wonderful, the vanilla was subtle and the buttercream was sweet with a light taste of black currant. I think these are some of the prettiest so far. I know my pictures are not the best, but I think they are getting better!