Before adding beef to the slow cooker, sear the chuck roast chunks in a hot pan with flour coating to create a golden crust that locks in juices and adds deep, savory flavor to your broth.

Place harder vegetables like potatoes and parsnips on the bottom of the slow cooker where they cook longer, and add frozen peas in the last 15 minutes to prevent them from becoming mushy and colorless.

Toast the dried thyme in the hot pan after searing the beef to release its essential oils, creating a more robust and aromatic base for your stew.

Chuck roast is ideal because its high collagen content converts to gelatin during slow cooking, creating a naturally rich, velvety broth without added thickeners.

Add minced fresh garlic and a generous splash of Worcestershire sauce—these ingredients develop complex umami notes that distinguish premium Irish stew from ordinary beef stew.