A family-owned business is launching a range of premium Welsh butter in local Aldi stores after securing a new contract with the UK’s fastest-growing supermarket.

Caerphilly-based Castle Dairies has worked with farmers from across the region to develop a new block of butter which is churned in South Wales for Aldi’s Specially Selected range.

The new contract will see the business supply around 6,800 packs of the new range to Aldi’s 49 stores in Wales each week for at least the next 12 months.

The Specially Selected Welsh butter is made with the highest-quality local ingredients, including cream sourced from farms in Wales. Each batch is hand-salted with sea-salt crystals from Wales to ensure the best possible flavour and texture.

Castle Dairies has been owned and run by the Lloyd family since 1986.

John Lloyd, who brings more than 40 years of experience in the field, and his son Nigel worked closely with the Aldi team to create the new product.

Rebecca Ross, category manager at Castle Dairies, said: “We identified the potential for Aldi to expand their Specially Selected range with a premium offering of butter made in the region, and they really embraced the idea. They helped us to develop the butter for their Specially Selected range and we’re really proud to see it in stores.

“We carefully select all of our ingredients from local farms, which helps to give our products a rich, creamy flavour with a real crunch.”

Julie Ashfield, managing director of Buying at Aldi, said: “Working with British suppliers has been key to our growth. The new Welsh butter is an exciting new addition to our Specially Selected range and we are confident our shoppers will love it as much as we do.”

Aldi’s commitment to working with British suppliers has seen them ranked the best-performing supermarket for compliance with the Groceries Supply Code of Practice for five consecutive years.