Looking for Costco’s viral cookie cake? You’re in the right place. The Kirkland Signature Chocolate Chip Cookie Bar Cake just hit stores in January 2026, and it’s flying off shelves. Here’s everything you need to know—price, where to find it, what it tastes like, and whether it’s worth the hype.
Quick Facts About Cookie Bar Cake
- Price: $18.99 (warehouse price)
- Weight: 2.5+ pounds (41 ounces)
- Serves: Up to 20 people
- Shelf Life: 5 days refrigerated, 3 months frozen
- Location: Refrigerated bakery section at Costco
What Does the Costco Cookie Bar Cake Taste Like?
This is what everyone really wants to know, right?
People are calling it rich, decadent, but not too sweet—which is exactly what you want in a dessert. The chocolate flavor is strong but balanced, and the cookie dough chunks are the real star. You’re getting actual pieces of cookie dough, not just cookie-flavored cake.
The texture is what makes it special: soft chocolate cake, creamy mousse filling, and chunky cookie dough pieces all in one bite. It’s like eating a really good cookie and a premium bakery cake at the same time.
What’s Inside the Layers?
Here’s the complete breakdown:
Think of it like Costco’s famous Tuxedo Cake met a giant chocolate chip cookie—and this is their delicious baby.
Where to Buy the Costco Cookie Cake (In Stock & Availability)
Finding It in Stores
Where exactly is it? Go straight to the refrigerated bakery section—not the regular bakery area. Because of the mousse filling, it needs to stay cold.
Best time to shop: Early morning, right when the store opens. This cake is selling out fast at most locations.
How to check stock: Call your local Costco bakery department before driving there. Stock varies by location, and some warehouses are restocking daily while others get shipments weekly.
Costco Cookie Cake Delivery Options
Can you get it delivered? Yes! Check Costco Same-Day Delivery or Instacart for availability in your area.
Price difference: Online delivery prices might be slightly higher than in-warehouse ($18.99), plus delivery fees.
Tip: If it’s out of stock online, it might still be available in-store—delivery inventory is separate.
How Much Does It Cost?
Warehouse price: $18.99
Online delivery: Around $20-22 (varies by service)
Cost per serving: Less than $1 per person (based on 20 servings)
Compared to ordering a custom cake from a bakery (usually $40-60 for this size), Costco’s price is incredibly reasonable.
Costco Cookie Bar Cake Nutrition and Allergen Information
| Category | Details |
|---|---|
| Calories per slice | Estimated 300–400 calories per slice (1/20 of the cake) |
| Official nutrition facts | Not released by Costco |
| Main ingredients | Chocolate cake, mousse filling, cookie dough, chocolate chips, frosting, eggs, butter, cream |
| Contains allergens | Wheat (gluten), milk, eggs, soy |
| May contain | Peanuts, tree nuts (shared equipment) |
| Gluten-free | No |
| Dairy-free | No |
| Nut-free | Not guaranteed; check the product label |
How to Store the Costco Cookie Cake (Shelf Life & Freezing)
Refrigerator Storage
How long does it last? 5 days in the fridge when stored properly
Storage tips:
- Keep it in an airtight container or covered tightly with plastic wrap
- Store on a flat surface so the layers don’t shift
- Let it sit at room temperature for 10-15 minutes before serving for best flavor
Freezing the Cookie Bar Cake
Can you freeze it? Yes! And it freezes really well.
How to freeze:
- Cut into individual slices
- Wrap each slice tightly in plastic wrap
- Wrap again in aluminum foil (double protection)
- Place in a freezer bag
- Label with the date
How long can you freeze it? Up to 3 months
How to thaw: Move frozen slices to the fridge the night before. They’ll be ready to eat in 8-12 hours.
Costco Cookie Cake vs Tuxedo Cake: Which Is Better?
This is the big question Costco fans are asking. Here’s the honest comparison:
Tuxedo Cake
- Classic favorite, been around for years
- Chocolate and white mousse layers
- More elegant, less sweet
- Best for: Traditional cake lovers
Cookie Bar Cake
- New release, trending now
- Cookie dough chunks throughout
- More indulgent, cookie-forward flavor
- Best for: Cookie lovers, kids’ parties
The verdict? If you love cookies, get the Cookie Bar Cake. If you prefer classic mousse cakes, stick with the Tuxedo. Both are excellent—just different vibes.
Customer Reviews!
“The mousse layer is INCREDIBLE” – The cookie dough chunks in the mousse are the standout feature everyone mentions.
“Not too sweet, which I appreciate” – Despite being rich, it’s balanced enough that you can actually finish a slice.
“Sold out at my store twice!” – High demand means you might need to make multiple trips.
“Perfect for parties” – The size and presentation make it party-ready right out of the package.
“Better than I expected” – Even skeptics are impressed by the quality and flavor.
Tips for Serving the Cookie Bar Cake
For best results:
- Take it out of the fridge 15 minutes before serving (easier to cut, better flavor)
- Use a large, sharp knife and wipe it clean between cuts
- Serve with vanilla ice cream or whipped cream (optional but delicious)
- Pair with coffee or milk
Party presentation tip: Leave those two chocolate chip cookies on top until you’re ready to serve—they make it look amazing.
Is This Cake Limited Edition?
Costco hasn’t officially said, but based on how their bakery works, this could be a limited-time item. Popular seasonal items often rotate in and out.
My advice? If you want to try it, grab one soon. Costco’s best bakery items sometimes disappear without warning, and people regret not getting them while they could.
FAQs
It’s rolling out nationwide at most US Costco locations. Check the refrigerated bakery section or call ahead to confirm.
Mid-January 2026. It’s brand new!
Over 2.5 pounds (41 ounces)—roughly 12 inches long, serving 20 people comfortably.
Yes, always. The mousse filling requires refrigeration.
Yes, through Costco Same-Day Delivery or Instacart, depending on your area.
Like a chocolate chip cookie meets premium chocolate cake—rich, chocolatey, with cookie dough chunks throughout.
For the size, quality, and unique flavor? Absolutely. You’re getting bakery-quality dessert at warehouse pricing.
Should You Buy It?
Get it if you:
- Love chocolate chip cookies
- Need a dessert for a party or gathering
- Want something impressive without spending $50+ at a bakery
- Enjoy rich, indulgent desserts
Skip it if you:
- Prefer light, less sweet desserts
- Don’t have fridge space for a large cake
- Are looking for something gluten-free or dairy-free
Final thought!
The Costco Chocolate Chip Cookie Bar Cake is living up to the hype. At $18.99 for a massive, three-layer dessert that serves 20 people, it’s one of the best values in Costco’s bakery section right now.
The combination of moist chocolate cake, creamy mousse, and real cookie dough chunks makes it special. It’s not just another cake—it’s a well-thought-out dessert that actually delivers on its promise.
Available now in the refrigerated bakery section at most Costco warehouses. Stock is limited and selling fast, so check your local store soon.
Worth the trip? Definitely. This is one of those Costco finds people talk about. Grab one while you can.