A liqueur coffee, as its name suggests, is a coffee brew with a 25 ml shot of liqueur. This brew is usually served in a clear liqueur coffee glass with the coffee and cream separated for visual and taste effect. The liqueur of choice is added first with a teaspoon of sugar mixed in. The glass is then filled to within an inch of the top with filtered coffee. Slightly whipped cream may then be poured over the back of a spoon, so that it floats on top of the coffee and liqueur mixture. The sugar is required in the coffee mixture to help the cream float.
Drinking more coffee is linked to a lower risk of depression, according to a review of 26 studies published in Australian & New Zealand Journal of Psychiatry in 2016. For each cup of coffee consumed per day, the risk of depression decreased by 8 percent, the researchers found. However, it's worth noting that too much caffeine can cause problems in people who also suffer from anxiety, negating any beneficial effects the coffee can have on depression risk.