The Catherine of Sheridan Square is served in an Irish Coffee Cup. Why Irish? There’s no Jameson Irish Whiskey or even Guinness in this recipe. Why not serve it in a British Coffee Mug or a mug from Liechtenstein? They probably have great mugs that would be fun to use. It’s not fair.
It's Catherine not Cathy, you dolt! Use good coffee for this drink. If all you have left is some burnt coffee from breakfast, make a fresh pot of a good bold roast coffee.