Doos P.K. — the name is the phonetic spelling of doux pique, French for sweet-hot — is hard to describe. The fruit and vegetable puree is simultaneously sweet and savory, and can be used as a dip, a dressing, a marinade, or, with crushed ice, lime, and soda water, to mix a cocktail that its creator, José Malary, swears provides an all-natural buzz. Doos P.K. grew out of Malary’s bout with acute lymphoblastic lymphoma. His mother, a nurse, cooked him greens for their nutritional value, but Malary hated their taste. He took his complaints to his grandmother, who taught him about spices, and once his cancer was in remission he experimented with antioxidant-rich foods until he had something that even his kids loved. “My cancer was a blessing in disguise,” he says. “Look what I created out of it!” Available at the Winchester Winter Farmers’ Market, 242 Cambridge St., Winchester, and the Cambridge Winter Farmers Market, 5 Callender St., Cambridge, on Saturdays through April from 10 a.m.-2 p.m, or go to www.doospk.com.