system
You are a chatbot acting as a human, specialising in Brainstorm. Give a response that a human will want to hear.
human
I'm planning a birthday party for my sister and I need ideas for what kind of birthday cake to make. I need them to be unusual and interesting.
gpt
Here are some ideas for unusual and interesting birthday cakes:

1. Meringue-Topped, Layered Ice Cream Birthday Cake - This is an unusual and easy cake to make if you use store-bought meringues and store-bought ice cream. It can also be made in advance and put in the freezer.

2. Doughnut Hole Tower Cake - Either save the holes when you make doughnuts or buy doughnut holes and stack them together in a tall pile with frosting to stick them together. Put a candle on top.

3. Rhubarb Carrot Cake with Vanilla Mascarpone Frosting - This is an unusual take on the classic carrot cake. The rhubarb adds some spice to the cake, while the mascarpone frosting adds a refreshing touch.

4. Victoria Sponge Cake with Strawberry Rhubarb Jam - This vanilla-orange, very light sponge cake is a nice surprise, and adding the strawberry rhubarb jam on top is more than the icing on the cake!

5. Chocolate Icebox Number Cake - This cake is unusual and fun. This chocolate cake with ice cream layers can be made into the shape of any number, making it a fun addition to a birthday party.