captivating rainbow dessert with edible rose and layers

torte sweetness snack pink party icing food flower dessert cupcake cuisine cake buttercream birthday baking captivating rainbow dessert edible rose layers enchanting slice brownie base vibrant colorful creamy mousse jelly adorned delicate fondant visual delight smooth velvety gradient effect charm textures flavors delightful experience eyes taste buds special occasions whimsical treat joy creativity show-stopping centerpiece impress guests