This St. Patrick’s Day, customers at Einstein Bros. Bagels can celebrate with a special deal that’s new this year: Shamrock Shmear.

For one day only on Thursday, March 17, guests can spread a green plain cream cheese to any fresh-baked bagel for a festive breakfast. The offer is available for in-store orders (not available in Order Ahead) and can be added to any of the variety of bagels.

Einstein Bros. Bagels is no stranger to special one-day-only deals. The chain recently celebrated National Pizza Day by combining two popular foods, bagel egg sandwich and pepperoni pizza, in one. The Pepperoni Pizza Egg Sandwich was available at the Denver West Einstein Bros. “pop-up pizza shop” in Lakewood, Colorado, sold exclusively on February 9.