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CosMc’s: McDonald’s finally reveals menu, details about spinoff restaurant

McDonald’s universe is expanding with a space-themed, beverage- and breakfast-focused restaurant concept.

For its latest venture, McDonald’s is thinking outside the box — and into outerspace.

The fast-food chain officially announced its universe is expanding with CosMc’s, a new, small-format, space-themed, beverage- and breakfast-focused restaurant concept. McDonald’s CEO Chris Kempczinsk announced the news of the spinoff restaurant chain during its investor day on Dec. 6.

CosMc’s is here!
CosMc’s is here!Courtesy McDonald's

CosMc’s is based on McDonald’s beloved, extraterrestrial mascot from the ’80s and ’90s. CosMc is known for its zippy personality, which makes the menu, which features energy-boosting beverages and unique treats, perfectly fitting.

CosMc’s locations

The first location, opening in December, is located in Bolingbrook, Illinois and is part of a limited test run.

By the end of 2024, McDonald’s plans to open approximately 10 CosMc’s pilot locations, including spots in the Dallas-Fort Worth and San Antonio, Texas metro areas.

CosMc’s menu

CosMc’s has a pretty extensive menu, focusing heavily on breakfast and featuring more than 10 new beverages never before seen on a McDonald’s menu.

CosMc’s partial drink menu.
CosMc’s partial drink menu.Courtesy McDonald's

McDonald’s says CosMc’s menu is “rooted in beverage exploration, with bold and unexpected flavor combinations, vibrant colors and functional boosts.”

What this means is a broad range of drinks, from lemonades and coffees to energy-boosting beverages like Sour Cherry Energy Slush, Tropical Spiceade and S’mores Cold Brew. Patrons can customize their drinks by adding fruity boba, flavor syrups, energy shots and more.

CosMc’s partial food menu.
CosMc’s partial food menu.Courtesy McDonald's

As far as food goes, CosMc’s Spicy Queso Sandwich and Creamy Avocado Tomatillo Sandwich are its sandwich options, but there are many more sweet and savory snacks to pick and choose from.

On the savory side, CosMc’s offers Savory Hash Brown Bites and Pretzel Bites, and on the sweet side, it’s got a Blueberry Lemon Cookie Sundae, Caramel Fudge Brownie and more.

And yes, you can expect to find a few McDonald’s classics on the menu — but no combo meals.

Here’s the full menu:

CosMc's full menu.
CosMc's full menu.McDonald's

Signature Galactic Boosts

  • Sour Cherry Energy Burst: Tart cherry slush blended over truity popping boba with a boost of energy
  • Berry Hibiscus Sour-Ade: Tart lemonade mixed with a sweet berry probiotic blend served with a dried lemon wheel over ice
  • Island Pick-Me-Up Punch: Punched-up, berry-powered lemonade with dried strawberries
  • Blueberry Ginger Boost: A vitamin C-boosted blueberry-ginger green tea served with dried blueberries and lemon wheel

Slushies & frappés

  • Chai Frappe Burst
  • Popping Pear Slush
  • Pomegranate Hibiscus Slush
  • Cold Brew Frappé
  • Churro Frappé

Iced teas & lemonades

  • Tropical Spiceade
  • Blackberry Mint Green Tea
  • Sour Tango Lemonade
  • Sweet Tea
  • Half & Half
  • Iced Tea (Black tea or Green tea)
  • Lemonade


  • S’mores Cold Brew
  • Turmeric Spiced Latte
  • Cold Brew
  • Iced Coffee
  • Latte
  • Chai Tea Latte
  • Cappuccino
  • Mocha
  • Hot Chocolate
  • Hot Tea (Black, Green or Peppermint)


  • Spicy Queso Sandwich: Omelet-style egg with sausage, spicy queso sauce, white cheddar cheese and crispy jalapeño chips on a brioche bun
  • Creamy Avocado Tomatillo Sandwich: Omelet-style egg with applewood bacon, creamy avocado-tomatillo sauce and white cheddar cheese on a brioche bun


  • Pretzel Bites (with Spicy Queso, Herb Ranch or Hot Mustard)
  • Savory Hash Brown Bites
  • McPops (with Apple Cinnamon, Hazelnut, Cookie Butter or Mixed Bag)
  • Snack Box filled with meats, cheeses and more

Baked goods

  • Blueberry Lemon Cookie
  • Sea Salt Chocolate Chip Cookie
  • Caramel Fudge Brownie

Soft serve

  • Cones: Chocolate, Vanilla, Twist
  • Shakes: Citrus & Cream, Vanilla, Strawberry, Chocolate
  • Sundaes: Caramel Fudge Brownie, Blueberry Lemon Cookie, Caramel, Hot Fudge

From the McDonald’s universe

  • McMuffin: Egg, Bacon, Sausage
  • McFlurry: Oreo, M&M’s, Strawberry & Cookie

CosMc’s ordering experience

CosMc’s exterior in Bolingbrook, Illinois.
CosMc’s exterior in Bolingbrook, Illinois.Courtesy McDonald's

CosMc’s is set to offer what McDonald’s calls a “seamless digital and Drive Thru experience,” where customers can use a dynamic menu board and cashless payment devices to “breeze through” ordering and payment processes. Drive-thru pickup windows will be assigned once your order is ready.

CosMc’s history

For those unfamiliar with CosMc, according to the McDonald’s Wiki, he was featured in a series of McDonald’s commercials and print ads from 1986 to 1992.

In one 1987 commercial, CosMc lands in McDonaldland, only to be discovered by Ronald McDonald, Grimace and the Professor (another character that has since faded into obscurity). The ragtag group’s initial interaction with the character introduces the alien as one who likes to trade, though without permission at first, so it’s less interplanetary commerce and more robbery with a parting gift.

After some hijinks, CosMc and the crew enjoy a meal together, where the alien calls McDonald’s grub “deliciously awesome,” the alien turtle-shells back into his space suit — which also functions as his spaceship — and zooms away.

McDonald’s CEO Chris Kempczinski first revealed it would be launching the spinoff restaurant chain on July 27 in a Q2 conference call.

News of CosMc being plucked from McDonald’s past comes after the extremely successful revival of Grimace. This summer, the big purple blob had his super viral moment in the sun with the release of the Grimace Shake, which led to a darkly humorous TikTok trend with nearly 4 billion views to date.

“This quarter, if I’m being honest, the theme was Grimace,” Kempczinski said on the call.

Q1, McDonald’s hopes, will be out of this world.