Fossa pairs single-estate cacao from Malaysia's Semai Community with milk powder and organic cane sugar for a 56% dark milk base. They refine organic Darjeeling and Assam black tea leaves into the chocolate alongside seven whole spices: cardamom, cinnamon, ginger, clove, anise, black pepper, and nutmeg. This mechanical integration captures the malty, aromatic complexity of spiced chai without synthetic flavorings or extracts.