CNBC's Julia Boorstin chats with CookUnity co-founder and CEO Mateo Marietti on creating the first chef-to-consumer marketplace in food delivery, closing the chef distribution gap, the company's ambitious expansion plans, and Marietti's mission to become the 'Spotify' of food delivery. They also discussed the platform's "digital-first business," and how CookUnity is working with farmers to create a sustainable model while providing critical tech layer infrastructure for both the consumer app and the chef apps.