useless trivia: What Word Means: A South American Treeless Plain?

Questions

what liqueur is flavoured with the rind of bitter oranges?

relating to food what meat is the dish 'saltimbocca' made with?

what is this italian dessert, made from sponge cake, mascarpone cheese and flavoured with coffee and brandy called?

what is the name given to sole cooked in white wine and cream with grapes?

mixed diced vegetables in mayonnaise is what sort of salad?