A red eye is a drip filter coffee which espresso is then added.
May also be called dead eye or black eye depending on the strength between the two coffees.
The name refers to the beverage needed to stay awake on the red eye flight. A few variations of the beverage exist as the ratio of espresso coffee gets higher.
Red eye Ingredients: 30mls / 1 ounce of espresso coffee and 120 mls / 4 ounces of drip coffee