So keep the ice cream bowl in your freezer. (Where else would you keep it?) The next time you want iced coffee, simply make hot coffee however you prefer—drip, pour over, French press, whatever. Pour the coffee into the frozen bowl, wait a minute or so, give it a few swirls, and you’ll have cold coffee. (Because the coffee starts hot, rather than chilled, like an ice cream base, it won’t freeze.) Pour it into a cup of ice, and voilà: nearly instant iced coffee that is neither bitter and flat nor watered down. When you’re done, give the bowl a rinse, and stick it back in the freezer. Enjoy the thrill of spontaneity and the taste of regular coffee, except cold.