
Season the roast all over with salt and pepper. Sear in oil in a hot skillet, 3-4 minutes per side, for deeper flavor (skip if you're short on time).
Put potatoes, chunked carrots, and onion wedges in the slow cooker and set the roast on top with the garlic.
Whisk broth, tomato paste, and thyme and pour over. Cook on LOW 8 hours or HIGH 5 hours, until the beef shreds easily.
Move the beef and vegetables to a platter. Whisk the cornstarch with 2 tbsp cold water, stir into the cooking liquid, and cook on HIGH 10 minutes to thicken into gravy.
Shred or slice the beef and serve with vegetables and gravy.
Photo: DinnerDrop