CosMc's

Fast food restaurant · Bolingbrook

CosMc's

Fast food restaurant · Bolingbrook

1

285 N Weber Rd, Bolingbrook, IL 60490

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CosMc's by null
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CosMc's by null
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CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
CosMc's by null
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285 N Weber Rd, Bolingbrook, IL 60490 Get directions

cosmcs.com

$10–20 · Menu

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285 N Weber Rd, Bolingbrook, IL 60490 Get directions

+1 331 757 5958
cosmcs.com

$10–20 · Menu

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Last updated

Jul 15, 2025

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McDonald’s Is Launching a New Chain Called CosMc - Eater

"CosMc's, a new 'small format' McDonald's chain, is set to open in Bolingbrook, Illinois. It features a menu focused on drinks, breakfast, and other items like a Berry Hibiscus Sour-Ade, churro frappe, turmeric spiced latte, McMuffins, McFlurrys, a Creamy Avocado Tomatillo Sandwich, and a Spicy Queso Sandwich." - Jaya Saxena

https://www.eater.com/23982627/mcdonalds-new-chain-cosmc-opening-what-to-know
View Postcard for CosMc's

Floredy Beltran

Google
It was our first time and I love the drink I got. I ordered Iced French Toast Galaxy™ Latte and the drive thru girl offered how she like it because the drink can be bitter and she likes it sweet so I asked for something in the middle and the drink turned out so good.! We also got sandwiches and pretzel bites. The pretzel with the Spicy Queso was about 4/10. It just didnt taste that great. I loved the avocado tomatillo sauce on the sandwich but it was a bit too soft for me. But overall the menu is pretty cool. They really have the cosmic drinks vibe on point.

Shantelle Mueller

Google
I'm so glad I got to visit before they close for good in September! On Monday, June 23rd a friend and I looked up online to see where the IL location is exactly. We came upon an article that stated that all locations would be closing at the end of June! I began panicking as I hadn't visited yet! I live in Missouri, 4.5 hours away. So, not too far... I commented on many recent Facebook posts related to this location. Most people thought it had closed already, or that it had closed Monday the 23rd. One person said they thought it might be open until September but that their source was unreliable. So, today, June 25th, my bf, me, and our dog jumped in the car and began our road trip! We were very happy to find out CosMc's was still open and just as happy with our experience. What we ordered: Sprite Moonsplash Sprite Berry Blast Pretzel Bites w/spicy queso sauce Spicy Queso Sandwich Savory Hashbrown Bites Apple Cinnamon McPops My favorite thing was the hashbrowns!! I wish there were more than 4 per order. Or it would be cool if it was one large hashbrown like at McDonald's but with the savory seasoning. The Sprites were good. I liked the Moon Splash more than the Berry Blast. I'm not a fan of cream. The pretzels were good but kind of hard, maybe overcooked? The Spicy Queso San. 10-10 stars!! I love spicy breakfast sandwiches!! And there was like crispy jalapeño flakes or something on it which was a lovely surprise. I really really wanted to enjoy the Apple Cinnamon McPops. But they were cold, refrigerated cold. Why don't they warm them? 1-10 cold would be a 10-10 if they warmed them. Buy them, take them home, and pop them in the microwave for 10 seconds.

Jorge Cherriz

Google
CosMc’s isn’t just another fast-food chain—it feels like a fresh, exciting take on what a drive-thru experience can be. From the moment you pull in, you notice the difference. The branding is vibrant, the menu is packed with fun and unique options, and most importantly, the staff is incredibly friendly and welcoming. Unlike traditional fast-food places where service can sometimes feel rushed or impersonal, the employees at CosMc’s take the time to ensure each customer has a great experience. Whether it’s greeting you with a smile, making small talk while your order is being prepared, or double-checking that everything is just right, their hospitality stands out. One of the best perks of visiting CosMc’s is their app-based promotions, especially the free drink offer. Many loyalty programs can be complicated or require multiple purchases before you see a reward, but CosMc’s keeps it simple—just download the app, and you can grab a drink for free. It’s a smart way to introduce new customers to their menu while also making regulars feel appreciated. The process of redeeming the reward is seamless; there’s no hassle, no fine print that makes it difficult to use, and the staff is always happy to apply the discount without hesitation. The drink selection itself is another highlight. Unlike a typical McDonald’s menu, CosMc’s focuses on specialty beverages, offering everything from iced lattes to slushies with unique flavors like Sea Salted Caramelactic Shaken Espresso or the Coconaut Cold Brew. The free drink promotion makes it easy to experiment with these options, and the friendly employees are often happy to recommend their personal favorites if you’re unsure what to try. Beyond just the drinks, the overall vibe of CosMc’s is fun and inviting. Even though it’s primarily a drive-thru concept, the atmosphere still feels welcoming, and the employees contribute to that with their positive energy. You can tell they’re not just there to get you in and out as fast as possible—they actually care about making sure you enjoy your visit. It’s these small yet meaningful details—great customer service, generous app rewards, and a fresh, exciting menu—that make CosMc’s more than just another drive-thru spot. It’s a place that feels new, engaging, and worth coming back to, not just for the drinks but for the entire experience.

Mark Musgrave

Google
Hurry, They may be closing June 10th, last day. Really good bubble tea, an egg and biscuit sandwich with Queso sauce. Flavor is out of this world. Also, a much better drive-through experience with a chance to talk to your host and interact with the menu. Skip the line next door and try CosMc's. So much fun.

K Rose

Google
We enjoyed this place! I thought the restaurant was closed because we didn't see any cars around at 8am. We drove around again around 8:30 and parked to study the menu. We ended up getting the spicy queso breakfast sandwich with sausage and churro lattes. The breakfast sandwich was good. The bread was fresh and the fluffy egg was great. I didn't care for the fried jalapeños,they became soggy right away,and the queso isn't very spicy. I won't make any special trips for it,but it was tasty. The latte was great for my guy,but I like more actual coffee,this was foam galore,and there was still foam at the bottom-they have super milk or something. The person at the window advised us that the lattes aren't very sweet and asked if we wanted to add sugar. We wanted to try them as is. I don't like overly sweet coffee,but a pump of syrup or a couple of sugar packets were definitely needed. Overall,this was a nice place and I'll definitely go back to try more items,it's still strange to me why they had no cars in the morning,but hey check it out,just check the menu 1st and customize your drinks.

Jeremy A

Google
I got a coffee drink and one of the sandwiches. I had been wanting to go since it opened, but just never made it. Now that it is closing, in wish I had gone a few more times. Obviously it is fast food, but it tasted good. The dri k was a little sweet for me, but the taste was good, and there are many people that like their coffee drinks sweet like that.

Miss Maris

Google
Sad to see this place close a the end of June. Love the cookie butter mcpops, and tomatillo avocado bacon egg and cheese sandwich. I hope these items come to regular mcdonalds!

Danielle Hayes

Google
Honestly, I loved it. The mcpops were SO good. soft and fluffy and tasty. Even better when dipped in your latte. The honey moon latte was delicious. The breakfast sandwiches and hashbrowns were good as well. They made fresh eggs and the wait wasn’t too long. No complaints!