cake_list = ["chocolate", "strawberry", "vanilla", "lemon", "banana",
             "carrot", "pistachio", "coffee", "raspberry", "coconut", "funfetti"]

while True:

    cake_flavour = input("What flavour cake would you like? ").lower()

    if cake_flavour in cake_list:
        print("You have chosen {}".format(cake_flavour))
        print("program continues...\n")

    else:
        print("Please choose an option from the menu\n")