Visit your local Costco warehouse bakery
Ask the bakery staff for a cake order form
Choose the cake size, flavor, filling, and design
Select any message you want written on the cake
Fill out the order form with your contact information and pickup date
Submit the completed form to the bakery staff
Pay for the cake when placing the order, if required by your location
Pick up the cake on the scheduled date and time
Check Costco’s website or call your local warehouse to confirm availability and ordering options