Thornton's Treasures will highlight lines made by small suppliers such as Purely Pesto, Stewed, Piece of Plenty, Berkmann, Leftbank Wine Merchant and Dunn's Bakery. They will be flagged up in Thornton's Crouch End and Belsize Park.
"Whether it's local food or fine food and wine from a little further afield, we are especially proud to be able to bring our customers these products," Thornton said. "Local foods from small suppliers are much more sustainable and our customers love the products and their authenticity. It's a great way to support small local businesses and differentiate yourself from the supermarkets."
Meanwhile, the first produce from Thornton's Food from the Sky project went on sale this week. Food from the Sky was launched earlier this year when Thornton turned the roof of his Crouch End store into a garden to grow veg.
Thornton claims the garden, a collaboration between Thornton's Budgens, The Positive Earth Project and the local community, is the world's first supermarket roof garden. "The project is designed to inspire our community and a wider audience on the possibilities for urban food growing at a time when London needs to grow considerably more food and lower our carbon footprint," he added.