US regional hamburger restaurant chain White Castle is set to introduce a vegan alternative to cheddar cheese with its burgers.

The dairy-free alternative will be available at its New York and New Jersey outlets from the next month.

The company has partnered with GoodPlanet Foods to procure the non-dairy cheddar.

Customers can use the vegan cheddar cheese to complement any burger, including the Impossible Slider, a plant-based burger introduced in 2018.

White Castle vice-president Jamie Richardson said: “Our Impossible Slider was an instant Craver favourite, but it’s about to get a new dimension with the introduction of dairy-free cheddar.

“We are excited to bring this new non-dairy, vegan item to Cravers in the New York and New Jersey areas with the hope of taking it to other markets in the future.”

In recent years, White Castle has ramped up efforts to improve its plant-based menu. It first introduced a vegan patty called Veggie Slider in 2015.

Richardson added: “We’re committed to innovation, and we’re always looking for ways to do things better and make things better for our loyal customers.

“It’s exciting to be the fast-food restaurant that’s leading the trend in providing plant-based options for consumers.”

Based in Columbus, Ohio, White Castle has been operating as a fast-food hamburger chain for more than 99 years.

Currently, the company owns and operates more than 365 restaurants.

Last year, White Castle introduced the newly formulated plant-based Impossible Slider recipe across all its restaurants in the US.