Taking the time to make a smooth, thick gravy for this slow-cooked dinner is worth it. As the pot roast cooks, the water and juices from the vegetables and meat will thin the gravy out, creating just the right consistency.
Achieving a deeply browned crust on the chuck roast is paramount for flavor, as this Maillard reaction forms a foundational richness. Don't rush this step. When preparing the gravy base, ensure the tomato paste is cooked until it turns a 'brick-red' color; this deepens its flavor significantly. Whisk the flour into the pan drippings and tomato paste thoroughly before adding liquids to prevent lumps. The initial thickness of the gravy might seem robust, but it will thin out perfectly as the slow cooker renders juices from the meat and vegetables, creating the ideal consistency. Always slice the cooked roast against the grain for maximum tenderness, and allow it to rest briefly before slicing to redistribute juices.