Buffin Secret Menu Mystery Week

A full week of throwbacks and surprises, live May 11 through May 15, 2026. Mystery Week runs as a Monday through Friday secret Buffin rollout, with daily drops announced in Stories at 4:00 PM ET.

How to redeem Mystery Muffin:
1. Add at least $50 of items to your cart.
2. A popup will appear.
3. Click "Add to Order" up to 3 times max
4. Optionally add anything else
5. Checkout

Buffin Mystery Flavor

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Must add at least $50 worth of items to cart in order to unlock. Maximum 3 per purchase. Some exclusions apply.

Flavor Description:

Contains:

Manufactured in a facility that processes common allergens, including wheat, peanuts, tree nuts, soy, dairy, and eggs. Keep refrigerated. For best quality and a fresh-baked experience, microwave for 20 to 30 seconds before enjoying.

All values are listed per 1 muffin. Nutrition is calculated from standardized recipes. Because each muffin is freshly baked, actual values may vary slightly due to normal baking and moisture differences. Products are best kept refrigerated and can be microwaved for 20 to 30 seconds for a fresh-baked experience

Must have $50 worth of items in the cart in order to redeem. Max 3 per purchase. App purchases & previous orders are excluded. If you already have a cart that was abandoned, you must trigger the popup by adjusting your order. You can only purchase mystery muffins online for shipping or for pickup. Mystery muffins are available on a first come first served basis. A Limited amount will be stocked. Once they sell out, they're gone for good.