The U.S. celebrates French Fry Day on the second Friday in July, and for this year’s holiday, on Friday, July 11, several popular chains are offering sales and deals on the fan favorite treat!

Shake Shack: The New York-based chain is offering free classic or limited-time fries with any purchase on its app, online or in-store. Use the code FREEFRY. Shake Shack also has a set of four crinkle cut-shaped candles on sale for $39 in its online store. shakeshack.com

Celebrate National French Fry Day the Krystal way on July 11. Order online and use code FRYMEUP to get a free small fry with any $10+ purchase. MyMcDonald’s Rewards members can get a free medium fries with a $1 in-app purchase every Friday through the end of the year.