Lattespresso

Espressatte is the het ship between Latte Cookie and Espresso Cookie from the Cookie Run fandom.

Canon
Espresso Cookie and Latte Cookie once worked together as research partners. Latte Cookie regards him as an old friend, her Skill is also visibly similar to Espresso Cookie's Skill. Latte's quote "I knew a Cookie who counted every second. What a Cookie!" and the "rather eccentric aficionado of coffee" mentioned in her description are both likely references to Espresso Cookie.

Other than that, Latte Cookie and Espresso Cookie don't have many interactions together in the game. Although, in game, both are Epic Cookies. Both of them also are from Magic class and deal area damage, with a 15 second skill cooldown at base level.

Fanon
Espressatte isn't a very popular ship in the Cookie Run fandom as Espresseleine, one of their rival ships, is much more popular. On the topic of rival ships, Almondlatte is also another rival ship. Another reason for Espressatte not being as popular is that some people mistake them as siblings, which leads to some hate for this ship.