The cake's going to be a basic genoise. Since they don't drink, I can't use any alcohol either to flavor the fillings or the syrup for the cake layers. The outside will be a basic IM buttercream. Based on her suggestions, these are my thoughts: crème brulée is out (though we are having them to dinner the night before, and I will probably make that for dessert that night). Pomegranates and oranges/blood oranges seem more wintery to me, and plums and apricots strike me as being better suited to tarts. That leaves me with caramel, hazelnut, berries, mango, and passion fruit. The grapefruit thing throws me, as well. I could do a grapefruit curd, but can't possibly imagine it being very tasty as a cake filling. The cake will likely be six layers, so there are five layers of filling. I could swap out a couple of layers of cake for a hazelnut dacquoise and do a caramel mousse filling, or do a hazelnut praline mousse filling, or mix fruits: raspberry + mango, mango + passion fruit, raspberry + apricot. My friend is right. The possibilities are endless. Do you all have suggestions to help me clear my head? ← Chocolate cake with hazelnut buttercream....that's what I had for my wedding cake....