Red-eye gravy is a thin sauce often seen in the cuisine of the Southern United States and associated with the country ham of that region.

The gravy is made from the drippings of pan-fried country ham mixed with black coffee.

Prepared traditionally, with coffee and grease combined in the final step (see Preparation below), a heterogeneous mixture forms with the water-based coffee sinking to the bottom and the oil-based grease forming the top layer.

Less traditional preparation techniques do not always result in the "red eye" appearance, leading to folk legends surrounding the origin of the name.

When the coffee is added to the grease in this manner, a heterogeneous mixture may result that lacks the "red eye" appearance.