COLUMBUS, Ohio — White Castle, a 90-year-old hamburger chain known for its square “slider” burgers, is sipping on the idea of offering alcoholic beverages as it tests beer and wine sales at a restaurant in Indiana.

The food famously craved by stoners in the 2004 movie “Harold & Kumar Go to White Castle” can be had with a glass of wine or a domestic or seasonal beer at a Lafayette, Ind., restaurant that fuses a conventional White Castle with a new concept for the company called Blaze Modern BBQ. Wine costs $4.50 and beers start at $3.

White Castle’s test with those beverages was first reported in Wednesday’s The Columbus Dispatch.

Earlier this year, Burger King opened the Whopper Bar South Beach, a restaurant in Miami Beach offering beer, and Starbucks has been testing beer and wine at a few sites.