Build-A-Cookie - NYC Flagship

Design your ultimate oversized cookie (so big it serves 6) in a 1x1 jam session with a Milk Bar baker — done in 30 minutes flat. Feel free to bring a friend, but no large groups, please!

Each Build-A-Cookie spot includes one 8-inch cookie. Only ONE cookie may be made per 30 minute time slot. If you wish to design two cookies, please book two separate time slots.

Here’s how it works:

Step 1: Book your spot. We recommend claiming your spot ahead of time.
Step 2: Time to build your cookie! Arrive 5-10 minutes early.
Step 3: Meet with your Milk Bar baker, who will help you choose the perfect combo of cookie dough and mix-ins. Not sure what you want? Taste along the way!
Step 4: Watch as your cookie is mixed, shaped and baked — or take a stroll around the store (we’ll buzz you).
Step 5: Your 8-inch cookie pops out hot and fresh. Yippee!

***Please be sure to share any allergies or dietary restrictions with us 7 days in advance of your slot by contacting!


1196 Broadway at 29th St., New York, NY 10001

Duration: 30 minutes


  • Classes

    For your Milk Bar class, please wear comfortable, closed-toe shoes (we’ll provide the rest). Let us know if you have any severe food allergies, as we will be working with gluten, dairy, eggs, soy and nuts. If you require a Gluten-Free Birthday Cake*, they’re available for an additional $15 a person — just contact us 7 days ahead to make your substitution. Children under age 16 must be accompanied by a parent or guardian through the entire class. You may cancel your reservation up to 7 days ahead of your class for a refund, less a small processing fee.

  • Experiences

    Our Build-A-Cake and Build-A-Cookie experiences take about 30 minutes from top to bottom. It’s easy — just be sure to share any allergies or dietary restrictions with us 7 days in advance of your slot. If you can’t make it, you can cancel online at least 24 hours before your booking for a full refund (no-shows and late cancellations are non-refundable). If you’re running late and we’ve moved on to the next appointment, you may have to wait a few minutes, but we’ll accommodate you as fast as we can.

    *Please note: You can pre-book your experience up to 24 hours in advance. Same-day bookings can be made via walk-in.

    Questions? Reach out to

building a cake bakers building a cake