A California medical marijuana dispensary has raked in food donations with a unique offer: free pot.

The Granny Purps dispensary in Soquel, about 60 miles (100 kilometers) southeast of San Francisco, offered a complimentary marijuana cigarette for every four cans of food a patient brought in this holiday season. Each patient was limited to a maximum of three cigarettes a day.

The Santa Cruz Sentinel reports that the dispensary took in 11,000 pounds (5,000 kilograms) of food and handed out 2,000 marijuana cigarettes between November and Christmas Eve, when the promotion ended.

The food was donated to the Second Harvest Food Bank.