DarkMilk

DarkMilk is the slash ship between Dark Choco Cookie and Milk Cookie from the Cookie Run fandom.

Canon
Milk Cookie and Dark Choco Cookie were born and raised within the Dark Cacao Kingdom. Dark Choco Cookie was the prince of the kingdom while Milk Cookie was a villager that lived within or nearby that same kingdom. Milk was born in the Milk Village and is apart and Milk Tribe.

While Dark Choco Cookie was still the prince of the kingdom, he met Milk Cookie. It is revealed in the bond Snowy Promise that Dark Choco Cookie earnt a then-young Milk Cookie's admiration by saving Milk Cookie's village from a pack of attacking Cream Wolves during his legion as the prince, Milk Cookie, being so inspired by his bravery, would later swear an oath to "Protect the world from all evil".

Milk Cookie appears to have a positive impression of Dark Choco Cookie because of his experience with him while he was young, not hesitating to compliment Dark Choco Cookie in front of other cookies and calling him a hero in almost every instance where he mentions him. Milk Cookie often boasts about Dark Choco Cookie and his achievements and gets excited at the very mention of him.

In OvenBreak, years after Dark Choco Cookie goes missing, a grown-up Milk Cookie becomes so dedicated in searching for him that he creates a guild. He is visibly worried when nobody joins, but to his luck, Dark Choco Cookie's former Arena rival Purple Yam Cookie joins, who had misread the guild's purpose. Also, on Milk Cookie's OvenBreak relationship chart, Dark Choco Cookie is labeled with the 'Admiration' tag. Dark Choco Cookie, on the other hand. seems to scorn Milk Cookie unintentionally.

After being possessed by the Strawberry Jam sword and attacking his father, Dark Choco Cookie flees the Dark Cacao Kingdom and ends up becoming apart of Dark Enchantress Cookie's legion, where he is tormented and abused by the other members of the group (most notably Pomegranate Cookie) for his past deeds.

In Cookie Run: Kingdom, during Episode 5 of the "Cookies of Darkness" story cutscenes, Pomegranate Cookie uses her mirror to torment Dark Choco Cookie with his past memories. In one of his traumatic flashbacks, a young Milk Cookie (Only named Milk Village Youngster during the dialogues) is seen proclaiming his admiration to what is presumed to be a young Dark Choco Cookie after he saved the Milk Village from the Cream wolves. Dark Choco Cookie is horrified by this memory and tells the illusion of a young Milk Cookie that he is not who he thinks he is. It is unknown what Dark Choco Cookie thinks of Milk Cookie, having presumably forgotten him after all these years. Although, he appears to be at least a little grateful towards Milk Cookie's compliments during one of the Easter-egg object interactions in the Episode 14, Citadel of the Frozen Cliff, of Cookie Run: Kingdom.

Milk Cookie and Dark Choco Cookie have many stories together in OvenBreak and Kingdom. In Kingdom, the two have a story with Purple Yam Cookie called Snowy Promise. In the story, Milk Cookie goes over one of his repetitive stories about his interactions with Dark Choco Cookie to Purple Yam Cookie, who is uninterested and fed-up with Milk Cookie telling him the same story for 47th time.

In the Costume Set story titled the Pink Juice Incident, Milk Cookie started talking about Dark Choco Cookie after unknowingly drinking a love potion that makes you think about the person you love.

In a video by the official Cookie Run Kingdom YouTube account called GNOMED S3 E03｜Gnome Wants to Know!, Milk Cookie gets so overwhelmed by Dark Choco Cookie's presence, that he blushes intensely and faints from overexcitement, only to reawaken and faint again after seeing Dark Choco hovering closely over him.

Quotes
"Such strength and honor!"

- Milk Cookie's relationship chart referring to Dark Choco Cookie

"Someday, I will be just as strong!"

- Milk Cookie possibly referring to Dark Choco Cookie

"I won't let you insult his honor!"

- Milk Cookie possibly referring to Dark Choco Cookie

"Will I ever become as noble a Cookie?"

- Milk Cookie possibly referring to Dark Choco Cookie

Fanon
DarkMilk has gotten both love and hate from its fandom. Some fans see the two as problematic due to the fandom wars over their 'age gap', while the other side of the fandom tends to enjoy this ship for what it's worth and will go as far as defending the ship. DarkMilk would be the most popular ship for both characters as its one of the only ones in the fandom that can be backed up as canon. This ship was created in the first place after Milk Cookie's admiration with Dark Choco turned into outright worship and love, but it doesn't seem to have been denied nor confirmed if Dark Choco will ever reciprocate the same feelings for Milk Cookie.

Fandom
FAN FICTION

TUMBLR

Trivia

 * The main reason why Milk Cookie became a hero was because of Dark Choco Cookie.
 * Milk Cookie is believed to be younger than Dark Choco Cookie
 * When the two met, Milk Cookie was presumably a tween or young teenager, while Dark Choco Cookie was presumably an older teenager, but they were relatively close in age. The picture that Milk Cookie has framed in the back of his illustration for his Crunchy Strong Pediatrician Costume shows Dark Choco Cookie and Milk Cookie being similar in height, and although height does not define age, it's not a stretch to say that they're most likely canonically close in age.
 * During the cut-out illustration for pulling Milk Cookie's Super Epic costume Crunchy Strong Pediatrician, a framed picture of a young Milk Cookie and a then-prince Dark Choco Cookie can be seen on the background bookshelf.
 * In Cookie Run: Kingdom, If you have Milk Cookie and Dark Choco Cookie equipped on your team while clicking on Young Dark Choco Cookie's portrait in Episode 14, Citadel of the Frozen Cliff, a bonus dialogue will pop up between Dark Choco Cookie and Milk Cookie rather than the default one.
 * Milk Cookie shares his attack voiceline with Dark Cacao Cookie, who is Dark Choco Cookie's father.