# Red Eye

Source: https://dailyextraction.com/drinks/red-eye/
Last updated: 2026-10-21

> A red eye is a cup of drip or filter coffee with a shot of espresso added. With two shots it's usually called a black eye, and with three a dead eye. It's an American drink, likely named after overnight red-eye flights, and it goes by many local names, such as a shot in the dark.

## At a glance

- Chapter: Espresso drinks
- Served: Hot
- Brewing method: https://dailyextraction.com/methods/espresso/
- Origin: United States
- Glass: Coffee cup or takeaway cup
- Also known as: shot in the dark, black eye, dead eye, sludge cup, coffee with a shot

## Ingredients

- 1 cup drip or filter coffee
- 1 shot (2 for a black eye, 3 for a dead eye) espresso

## Steps

1. **Brew the coffee**: Brew a cup of drip or filter coffee.
2. **Pull the espresso**: Brew a shot of espresso. Many specialty cafés pull a double.
3. **Combine**: Pour the espresso straight into the cup of coffee.
4. **Serve**: Drink it black or add milk and sugar; you may need more than usual for an ordinary coffee.

A **red eye** is the most direct way to make coffee stronger: a cup of **drip or filter coffee** with a shot of [espresso](https://dailyextraction.com/methods/espresso/) poured into it. Add a second shot and it's a **black eye**; a third, and it's a **dead eye**. It's an American invention, rarely written on menus, and it has collected a remarkable number of nicknames. Here's how to make one, what to call it, and the competing stories behind the name.

## The short version

- **Drip coffee plus espresso**, in one cup.
- **One shot** for a red eye, **two** for a black eye, **three** for a dead eye.
- **American**, probably from the late 1990s, says Trade.
- **Strong**: Sprudge estimates about 250–300 mg of caffeine.
- **Named after red-eye flights**, most likely, though nobody can prove it.



## How do you make a red eye?

It's two coffees in one cup. Trade's method: brew a cup of drip coffee and top it with a shot of espresso; most specialty cafés pull doubles, so it's usually a double. At home, any [filter coffee](https://dailyextraction.com/methods/automatic-drip/) and any espresso will do.

Trade's writer tried a 12 oz red eye, black, and found it balanced rather than harsh: the sweetness of the drip and the bitterness of the espresso "went quite well together", like "an Americano with body". The catch is that every fault in the coffee is magnified, and if you take milk and sugar you'll need more than usual.

## How many shots, and what's it called?

| Shots of espresso | Name | Source |
| --- | --- | --- |
| 1 | Red eye | Honest Coffee Guide; Trade |
| 2 | Black eye | Honest Coffee Guide; Sprudge |
| 3 | Dead eye | Honest Coffee Guide; Sprudge |
| 3 | Green eye, at Starbucks | Trade; Honest Coffee Guide |

The one-shot drink has dozens of local names too. Trade says it's a **shot in the dark** on the West Coast and a **sludge cup** in Alaska. Sprudge lists a **depth charge**, an **eye opener**, a **hammerhead** in California and a **Canadiano** in Calgary, plus café names such as the Crow's Eye in Huntsville, Alabama. Honest Coffee Guide adds the **oil spill** and Dunkin's **Turbo Hot** coffee. Caribou trademarked "Depth Charge" in the early 2000s, Sprudge notes, and sent cease and desist letters to small Minnesota cafés using it.

## Where does the name come from?

Nobody knows. The sources offer three theories:

| Theory | Source |
| --- | --- |
| **Red-eye flights**: overnight flights, from the West Coast to New York, that land in the morning after little sleep. Sprudge adds the story that flight attendants mixed drip coffee and espresso in flight, calling it a legend that's hard to prove | Trade; Sprudge |
| **Red eyes**: the coffee simply makes your eyes red | Honest Coffee Guide |
| **Red-eye gravy**: a diner gravy made with coffee, popular with truck drivers, who might have named a thick, strong coffee after it. Honest Coffee Guide calls this "purely speculation on our part" | Honest Coffee Guide |

As for the drink, Trade says it started appearing in American coffee shops as a "shot in the dark" or "coffee with a shot", likely in the late 1990s. Starbucks is often credited with popularising it, but Sprudge and Honest Coffee Guide both think it's unlikely to have been the first to serve it.

*General guidance only, not medical advice. A red eye contains much more caffeine than a single coffee, so go easy if you're sensitive to it.*

## Red eye vs other espresso drinks

- **[Americano](https://dailyextraction.com/drinks/americano/):** espresso with hot water instead of coffee.
- **[Long black](https://dailyextraction.com/drinks/long-black/):** a double espresso poured onto hot water.
- **[Iced coffee](https://dailyextraction.com/drinks/iced-coffee/):** the cold way to drink a big coffee.
- **[Café cubano](https://dailyextraction.com/drinks/cafe-cubano/):** another strong coffee, made sweet with espumita.

Explore every drink in the [espresso drinks chapter](https://dailyextraction.com/drinks/espresso-drinks/).

## Words used in this guide

- [Body](https://dailyextraction.com/glossary/body/): Body is how heavy and textured coffee feels in your mouth, from light and tea-like to thick and syrupy.
- [Fines](https://dailyextraction.com/glossary/fines/): Fines are the very small, dust-like particles that every grinder produces alongside the main grind.

## FAQs

### What is the difference between a red eye, black eye and dead eye?

The number of espresso shots in the cup of coffee. Honest Coffee Guide says a red eye has one, a black eye two and a dead eye three. Sprudge and Trade note other names for the stronger versions, including Starbucks' "green eye".

### Why is it called a red eye?

Probably after red-eye flights, the overnight flights that land in the morning after little sleep, Trade says. Sprudge calls this a legend that's hard to prove. Honest Coffee Guide also floats red-eye gravy, a diner gravy made with coffee, as a possible source, admitting it's speculation.

### How much caffeine is in a red eye?

It varies with the cup and the shot. Sprudge's back-of-a-napkin estimate is about 250–300 mg, imagining about 200 mg in the drip coffee and 60 mg in the espresso.

### What does a red eye taste like?

Strong. Trade's writer found the sweetness of the drip coffee and the bitterness of the espresso went well together, "think, making an Americano with body", and that any faults in the coffee would be magnified.

### What is a red eye called in other places?

Lots of things. Trade says it's a shot in the dark on the West Coast and a sludge cup in Alaska; Sprudge lists a depth charge, an eye opener, a hammerhead in California and a Canadiano in Calgary; Honest Coffee Guide adds an oil spill and Dunkin's Turbo Hot.

## Sources

- [Deep dive: what is red eye coffee?](https://www.drinktrade.com/blog/education/what-is-a-red-eye-coffee)
- [What is a red eye coffee?](https://sprudge.com/?p=233161)
- [What is a red eye coffee?](https://honestcoffeeguide.com/what-is-a-red-eye-coffee/)