$27.99Half-Sheet Cake
Two layers with mousse in the middle. White or chocolate, any design from the catalog and a written message.
A Costco cake is a layered cake baked and decorated in the warehouse bakery, sold either as a custom order with your own design and message or ready-made from the bakery case. There are two custom sizes and two flavor pairings, and only Costco members can order and collect them.




Pick a type to jump to its cakes, prices and photos.
In late 2026 a custom half-sheet from Costco runs $27.99 and a 10-inch round $17.99, whatever design or message you choose. Ready-made bar cakes run about $17 to $19, and a dozen cupcakes $8.99. The half-sheet is the best value at under 60 cents a slice.
| Cake | Price | Size | Per slice |
|---|---|---|---|
| Half-Sheet Cake | $27.99 | About 13 x 18 in, 9.5 lb | About $0.58 |
| 10-inch Round Cake | $17.99 | 10 in, two layers | About $1.12 |
| Variety Cookie Tray | $22.99 | 60 cookies | About $0.38 |
| Tuxedo Chocolate Mousse Cake | $17.99 | Long bar cake | About $1.50 |
| Decorated Tuxedo Bar Cake | $17.99 | Bar cake with piped flowers | About $1.50 |
| Chocolate Cake with Chocolate Mousse | $17.99 | 10 in round | About $1.12 |
| Caramel Tres Leches Bar Cake | $17.99 | Bar cake | About $1.50 |
| Carrot Bar Cake | $18.99 | Bar cake | About $1.58 |
| Chocolate Chip Cookie Bar Cake | $18.99 | About 2.5 lb | About $1.58 |
| Pumpkin Bar Cake | $16.99 | About 2 lb | About $1.06 |
| Chocolate Hazelnut Crunch Cake | $14.99 | 26 oz sheet | Varies |
| Waffle Cone Bar Cake | $21.55 | About 2.8 lb | Varies |
| Peaches and Cream Bar Cake | $18.99 | 37 oz | Varies |
| All Butter Pound Cake | $6.99 | Loaf in a window box | Varies |
| Cupcakes, 12-pack | $8.99 | 12 cupcakes, white or chocolate | About $0.75 |
| Chocolate Cupcakes, 12-pack | $8.99 | 12 cupcakes | About $0.75 |
| Mini Cupcakes, 24-pack | $5.99 | 24 minis, flavors rotate | About $0.25 |
| Jumbo Mini Cakes, 6-pack | $9.99 | 6 single-serve cakes | About $1.67 |
Typical US warehouse prices, November 2026. Cake prices can differ by a dollar or two by region.
Count on 48 two-inch squares from a half-sheet and 16 wedges from a round, or fewer if you cut bigger pieces. Enter your guests, slice size, flavor and pickup date below to see the cheapest mix of cakes, the cost per guest and the exact dates for an app or paper-form order.
Costco cannot mix flavors in one cake, so both flavors means separate cakes. Prices are typical warehouse prices; closed days follow Costco's holiday schedule.
Here is every cake sold at US Costco bakeries through 2026, from the made-to-order half-sheet to bar cakes and cupcakes in the case. Labels show which ones are new this year and which come and go with the seasons. Cheesecakes are listed on our Costco bakery menu.
$27.99Two layers with mousse in the middle. White or chocolate, any design from the catalog and a written message.
$17.99The same two flavor pairs in a round. Plain and decorated rounds also sit ready in the bakery case most days.
$22.9924 chocolate chunk, 18 white chocolate double nut and 18 oatmeal raisin. Add it on the same cake order form.
$17.99Chocolate cake with dark and white chocolate mousse, ganache and chocolate curls. The bakery's best-known bar cake.
$17.99The tuxedo cake dressed with buttercream flowers for holidays and spring, at the same price as the classic.
$17.99An undecorated chocolate round, 10 inches across, with chocolate mousse inside. Ready for your own candles or toppers.
$17.99Sponge cake with a three-milk custard mousse and caramel, finished with milk chocolate shards. Some warehouses only.
$18.99New in 2026Carrot cake with raisins, walnuts and pineapple under cream cheese icing, cut into a long bar.
$18.99New in 2026Chocolate and vanilla cake around a cookie-dough mousse, topped with two whole cookies.
$16.99Fall seasonPumpkin spice sponge with pumpkin mousse and whipped cream. On shelves from late August.
$14.99New in 2026A Dubai-style cake from We Take the Cake: chocolate cake, hazelnut cream and crunchy kataifi under ganache.
$21.55Summer 2026Waffle cone cake with cream cheese mousse, chocolate drizzle and mini cones on top.
$18.99Summer 2026Vanilla sponge, peach filling and whipped cream with white chocolate shavings.
$6.99A dense Kirkland loaf made with butter only, for slicing with berries or toasting.
$8.99Regular-size cupcakes with buttercream and sprinkles, about 340 to 360 calories each.
$8.99Chocolate cake with chocolate buttercream and candy pieces, sold beside the white pack.
Bite-size cupcakes such as Oreo, the cheapest way to put a treat in every hand.
Rotating flavors like raspberry and red velvet. Each one eats more like a wedge of layer cake.
A Costco half-sheet is roughly 13 x 18 inches and 9.5 pounds, and it gives 48 two-inch squares or 32 larger two-by-three-inch slices. The 10-inch round serves 12 to 16. There is no full-sheet size, so a crowd of 96 needs two half-sheets placed side by side.
| Size | Inches | Centimeters | Weight | Slices 2 x 2 in | Slices 2 x 3 in |
|---|---|---|---|---|---|
| Half-sheet cake | About 13 x 18 in | About 33 x 46 cm | About 9.5 lb | 48 | 32 |
| 10-inch round cake | 10 in across | About 25 cm | Not listed | 16 | About 12 |



Custom Costco cakes come in exactly two pairings: vanilla layers filled with cheesecake mousse and topped with white buttercream, or chocolate layers filled with chocolate mousse and topped with chocolate buttercream. You cannot swap fillings between them or put two flavors in one cake. For a mixed crowd, order one of each.

Vanilla layers with a tangy cheesecake mousse in the middle. The mousse is the standout, which makes white the safer pick when you do not know the crowd.
Chocolate layers, chocolate mousse and chocolate buttercream all the way through. Choose it when the guest of honor is a chocolate fan, and add a white cake for big parties.
Costco offers about ten preset designs, including roses, balloons, candles, rainbow, a scored top, baby shower, graduation, the Costco bear, a cross and a flag, plus seasonal ones. You can pick the rose and icing colors and write a message, but there are no photo prints, characters or custom drawings.
| Design | Good for | Where |
|---|---|---|
| Roses, white or colored | Birthdays, anniversaries, Mother's Day | Every bakery |
| Balloons | Kids' birthdays, office parties | Every bakery |
| Scored top | Big groups, funerals, work events | Every bakery |
| Candles | Birthdays | Most bakeries |
| Rainbow | Kids' birthdays, celebrations | Most bakeries |
| Baby shower | Showers, gender reveals | Most bakeries |
| Graduation, school colors | Graduations | Some bakeries |
| Costco bear | Kids' birthdays | Some bakeries |
| Cross | Baptisms, first communions, church events | Some bakeries |
| Flag and patriotic stars | July 4, military homecomings | Some bakeries |
| Sports (soccer, basketball) | Team parties | Some kiosk boards |
| Christmas, Valentine's, Easter | Holidays | Seasonal |





There are two ways. In the Costco app, tap Warehouse and then Warehouse Ordering no later than three days, and no earlier than two weeks, before pickup. At the warehouse, complete the paper order form at the kiosk about a day ahead. Either way, payment happens at checkout when you pick the cake up.
| How | Earliest notice | Furthest ahead | Notes |
|---|---|---|---|
| Costco app | 3 days before pickup | 2 weeks before pickup | From home, at participating warehouses |
| Paper form at the bakery | About 24 hours before | About a week at most bakeries | Every warehouse, drop it in the box |
| Phone or Costco.com | Not accepted | Not accepted | Bakeries do not take cake orders by phone |


The paper form runs top to bottom: tick a size and a flavor, choose one design and any rose colors, write your message and its icing color, add a cookie tray if wanted, then add your name, phone, membership number and pickup date and time. Drop it in the box at the kiosk.
Tick 10-inch round or half-sheet. Need more than 48 slices? Fill in a second form.
Pick white, with cheesecake mousse inside, or chocolate, with chocolate mousse inside.
Tick one design. For roses, write the colors you want next to it.
Print the message clearly and name the icing color. Check every spelling.
Add the $22.99 60-cookie tray here if you want one.
Name, phone, membership number, pickup date and pickup time.


Yes, and many people do. Costco has no official wedding cakes, but couples stack or trim plain half-sheets and add their own flowers, saving hundreds next to bakery wedding cakes that often cost $300 to $700. Showers and graduations work with the baby shower design or school colors on the graduation design.



Order two or three plain white half-sheets, cut them into rounds for tiers or serve them scored from the kitchen, and dress the display cake with flowers.
Pick the baby shower design, choose pink, blue or neutral icing, and have the baby's name written on top.
Write the school colors in the box next to the graduation design, and the decorators will match them.
Yes, even after prices rose from $19.99 before 2020 to $27.99 today. Costco's two layers with mousse filling cost about half what a filled half-sheet costs at Walmart or Publix. Sam's Club and BJ's charge similar or lower prices, but their cakes are a single layer without filling.
| When | Costco half-sheet |
|---|---|
| Before 2020 | $19.99 |
| 2020 | Half-sheets paused for a time |
| 2024 | $24.99 |
| February 2025 | $26.99 |
| August 2025 to now | $27.99 |
| Store | Build | Price | Serves |
|---|---|---|---|
| Costco | Two layers with mousse filling | $27.99 | 48 |
| Sam's Club | One layer, no filling | $20.98 | 48 |
| BJ's Wholesale | One layer, no filling | $27.99 | 20 to 30 |
| Walmart (2025 price) | With filling | $48.16 | 48 |
| Publix (2025 price) | Cheesecake filling | $59.24 | 48 |
A 3-ounce slice of Costco half-sheet cake has about 340 calories in white and 330 in chocolate, while round-cake slices run 390 to 430. Keep a covered cake in the fridge for three to four days, or wrap slices and freeze them for up to three months, thawing overnight in the fridge.
About 340 calories for white and 330 for chocolate, before extra decorations.
About 430 calories for white and 390 for chocolate, since round slices are thicker.
About 340 to 360 calories each, with roughly 38 g of sugar.
Covered, three to four days. Leave it in large pieces so the cut edges dry out less.
Seal slices in plastic wrap inside a freezer bag. They hold their quality for up to three months.
Expect wheat, eggs, milk and soy. Ask the bakery for the ingredient list before ordering for an allergy.
Match the cake to the head count and the mood. These six real plans, priced from the cake list above, cover an office birthday, a kids' party, a baby shower, a graduation open house, a budget backyard wedding and a small retirement lunch, from one bar cake to three custom cakes.

Tanya's team of 25 signs a card and shares a cake.
About $27.991 items


Jake turns seven with 14 classmates and their parents.
About $35.973 items


Aisha's sisters host 40 guests on a Sunday afternoon.
About $50.982 items

The Nguyen family expects 90 for an open house.
About $55.982 items


Emma and Luis feed 110 guests on a tight budget.
About $73.973 items

A library staff of 12 wants something besides sheet cake.
About $17.991 items
Feeding the crowd too? Add sandwich and shrimp trays from the Costco catering menu.
Not on their own. The app needs a verified membership, and the paper form asks for member details. A member can place the order and pay at pickup on your behalf.
Since August 2026, custom cakes can be ordered for delivery through Costco Same-Day in many areas, at higher prices than the warehouse and with delivery fees on top.
The feature is rolling out warehouse by warehouse. Update the app, then check Warehouse Ordering again. If it is still missing, your warehouse has not joined yet, so use the paper form.
Under Costco's return policy, products made to a member's own specifications are not refundable unless they fail to match what was ordered. Check the cake before you leave.
Costco does not post an official printable form on Costco.com. The forms sit at the bakery kiosk, and the PDFs floating around online are unofficial copies. At home, the app is the official way to order.
Neither is available. Edible photo prints and licensed characters are off the menu, so order a plain cake and add a photo topper or figurines at home.
Not in the US. Strawberry filling was dropped years ago, and today every custom cake uses vanilla cheesecake mousse or chocolate mousse.