Minimum amount of water in coffee

Yes, you should be able to make only the amount you need - the markings on the glass carafe are only for water measurement - there's no "minimum" water amount! Carefully measure out 2 cups of water (I use a pyrex measuring cup) and add the appropriate amount of grounds (however strong/weak you like your coffee) and you should have 2 fresh cups of coffee within minutes. In the hotter months, I usually make more than I need and put the remainder into a container in the fridge for iced coffee later :)