Proost - Rue des Halles, opened in August 2026, serves a variety of espresso-based drinks, including espresso for €2.50 and flat whites for €5.50, all crafted with beans from Dose roastery. Utilizing a La Marzocco machine, the shop also offers plant-based milk alternatives, sweet food options, and takeaway drinks. Located on Rue des Halles, it contributes to the specialty coffee scene between the Louvre and Palais-Royal, and is open seven days a week, providing a welcoming spot for both locals and visitors.