Grubhub is going deeper into the grocery category through a new partnership with Buyk, the New York-based grocery service promising deliveries within 15 minutes. Through the new deal, Buyk groceries will be available on the Grubhub marketplace in more than 30 initial locations in New York City and Chicago.

This announcement follows last week’s news that Grubhub was scaling up with 7-Eleven to bring the Grubhub Goods convenience concept across the country. Together, these partnerships show Grubhub is getting aggressive in following DoorDash and Uber Eats into new product categories beyond traditional restaurant delivery.

The fulfillment and delivery of orders will be handled by Buyk, and customers will be able to order from more than 30 initial participating locations in New York City and Chicago in the coming weeks. More than 2,000 grocery and convenience items from local and national vendors, as well as Buyk’s own private label goods, will be available for purchase and delivery in 15 minutes or less.

“We’re excited to work with Buyk and together deliver everyday essentials and grocery items even faster to our diners,” said Kyle Goings, director of growth and new verticals at Grubhub. “This partnership will make the Grubhub Marketplace a one-stop shop for restaurants, convenience items and grocery supplies, building more diner loyalty and helping drive even more orders to all of our restaurant and merchant partners. We’re thrilled to add Buyk to expand the number of options and delivery speed available to our diners.”

“We’re thrilled to partner with Grubhub to bring real-time retail to an even broader base of consumers,” said Buyk CEO James Walker. “This strategic partnership goes far beyond grocery delivery, as Buyk and Grubhub will also cooperate in the areas of hyper-localized assortment and product management, food waste optimization, as well as smart routing and safety protocols to build the best experience for our couriers and our customers.”

With this partnership, Grubhub and Buyk are doubling down on their respective efforts to fight food waste and will be donating excess produce and perishable items to local nonprofit organizations.

As Grubhub has lost market share in recent years, these big-name partnerships and expansions into new product categories could certainly turn the tide—while also helping accelerate the rollout of instant grocery beyond its first U.S. footholds in NYC, Chicago and San Francisco.