National Cortado Day is observed worldwide every December 20 to celebrate the cortado, a coffee beverage that originated in Spain. A cortado consists of espresso diluted with an equal amount of warm milk, which balances the intensity of the espresso. The name "cortado" comes from the Spanish verb "cortar," meaning "to cut," referring to how the milk cuts the coffee's acidity. This holiday is promoted by Verbena Coffee, a craft coffee shop in Houston, Texas. To celebrate, people can order a cortado at their favorite coffee shop or make one at home using an espresso machine. The traditional cortado is unsweetened, but variations like the cortadito, which includes sweetened condensed milk, also exist. Participants are encouraged to share photos of their cortados on social media with the hashtag #NationalCortadoDay.